19780200

素因数分解:

$2^3\times 3^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:79

約数の個数: 288

約数和(自身を含む): 77182560

約数和(自身を除く): 57402360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 27, 30, 33, 36, 37, 40, 44, 45, 50, 54, 55, 60, 66, 72, 74, 75, 81, 88, 90, 99, 100, 108, 110, 111, 120, 132, 135, 148, 150, 162, 165, 180, 185, 198, 200, 216, 220, 222, 225, 243, 264, 270, 275, 296, 297, 300, 324, 330, 333, 360, 370, 396, 405, 407, 440, 444, 450, 486, 495, 540, 550, 555, 594, 600, 648, 660, 666, 675, 740, 792, 810, 814, 825, 888, 891, 900, 925, 972, 990, 999, 1080, 1100, 1110, 1188, 1215, 1221, 1320, 1332, 1350, 1480, 1485, 1620, 1628, 1650, 1665, 1782, 1800, 1850, 1944, 1980, 1998, 2025, 2035, 2200, 2220, 2376, 2430, 2442, 2475, 2664, 2673, 2700, 2775, 2970, 2997, 3240, 3256, 3300, 3330, 3564, 3663, 3700, 3960, 3996, 4050, 4070, 4440, 4455, 4860, 4884, 4950, 4995, 5346, 5400, 5550, 5940, 5994, 6075, 6105, 6600, 6660, 7128, 7326, 7400, 7425, 7992, 8100, 8140, 8325, 8910, 8991, 9720, 9768, 9900, 9990, 10175, 10692, 10989, 11100, 11880, 11988, 12150, 12210, 13320, 13365, 14652, 14850, 14985, 16200, 16280, 16650, 17820, 17982, 18315, 19800, 19980, 20350, 21384, 21978, 22200, 22275, 23976, 24300, 24420, 24975, 26730, 29304, 29700, 29970, 30525, 32967, 33300, 35640, 35964, 36630, 39960, 40700, 43956, 44550, 44955, 48600, 48840, 49950, 53460, 54945, 59400, 59940, 61050, 65934, 66600, 66825, 71928, 73260, 74925, 81400, 87912, 89100, 89910, 91575, 98901, 99900, 106920, 109890, 119880, 122100, 131868, 133650, 146520, 149850, 164835, 178200, 179820, 183150, 197802, 199800, 219780, 224775, 244200, 263736, 267300, 274725, 299700, 329670, 359640, 366300, 395604, 439560, 449550, 494505, 534600, 549450, 599400, 659340, 732600, 791208, 824175, 899100, 989010, 1098900, 1318680, 1648350, 1798200, 1978020, 2197800, 2472525, 3296700, 3956040, 4945050, 6593400, 9890100, 19780200]

約数ペア:

[(1, 19780200), (2, 9890100), (3, 6593400), (4, 4945050), (5, 3956040), (6, 3296700), (8, 2472525), (9, 2197800), (10, 1978020), (11, 1798200), (12, 1648350), (15, 1318680), (18, 1098900), (20, 989010), (22, 899100), (24, 824175), (25, 791208), (27, 732600), (30, 659340), (33, 599400), (36, 549450), (37, 534600), (40, 494505), (44, 449550), (45, 439560), (50, 395604), (54, 366300), (55, 359640), (60, 329670), (66, 299700), (72, 274725), (74, 267300), (75, 263736), (81, 244200), (88, 224775), (90, 219780), (99, 199800), (100, 197802), (108, 183150), (110, 179820), (111, 178200), (120, 164835), (132, 149850), (135, 146520), (148, 133650), (150, 131868), (162, 122100), (165, 119880), (180, 109890), (185, 106920), (198, 99900), (200, 98901), (216, 91575), (220, 89910), (222, 89100), (225, 87912), (243, 81400), (264, 74925), (270, 73260), (275, 71928), (296, 66825), (297, 66600), (300, 65934), (324, 61050), (330, 59940), (333, 59400), (360, 54945), (370, 53460), (396, 49950), (405, 48840), (407, 48600), (440, 44955), (444, 44550), (450, 43956), (486, 40700), (495, 39960), (540, 36630), (550, 35964), (555, 35640), (594, 33300), (600, 32967), (648, 30525), (660, 29970), (666, 29700), (675, 29304), (740, 26730), (792, 24975), (810, 24420), (814, 24300), (825, 23976), (888, 22275), (891, 22200), (900, 21978), (925, 21384), (972, 20350), (990, 19980), (999, 19800), (1080, 18315), (1100, 17982), (1110, 17820), (1188, 16650), (1215, 16280), (1221, 16200), (1320, 14985), (1332, 14850), (1350, 14652), (1480, 13365), (1485, 13320), (1620, 12210), (1628, 12150), (1650, 11988), (1665, 11880), (1782, 11100), (1800, 10989), (1850, 10692), (1944, 10175), (1980, 9990), (1998, 9900), (2025, 9768), (2035, 9720), (2200, 8991), (2220, 8910), (2376, 8325), (2430, 8140), (2442, 8100), (2475, 7992), (2664, 7425), (2673, 7400), (2700, 7326), (2775, 7128), (2970, 6660), (2997, 6600), (3240, 6105), (3256, 6075), (3300, 5994), (3330, 5940), (3564, 5550), (3663, 5400), (3700, 5346), (3960, 4995), (3996, 4950), (4050, 4884), (4070, 4860), (4440, 4455)]