18727800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^4\times {\mathrm{13}}^1$

素因数の和:60

約数の個数: 240

約数和(自身を含む): 72938040

約数和(自身を除く): 54210240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 49, 50, 52, 56, 60, 65, 70, 75, 78, 84, 91, 98, 100, 104, 105, 120, 130, 140, 147, 150, 156, 168, 175, 182, 195, 196, 200, 210, 245, 260, 273, 280, 294, 300, 312, 325, 343, 350, 364, 390, 392, 420, 455, 490, 520, 525, 546, 588, 600, 637, 650, 686, 700, 728, 735, 780, 840, 910, 975, 980, 1029, 1050, 1092, 1176, 1225, 1274, 1300, 1365, 1372, 1400, 1470, 1560, 1715, 1820, 1911, 1950, 1960, 2058, 2100, 2184, 2275, 2401, 2450, 2548, 2600, 2730, 2744, 2940, 3185, 3430, 3640, 3675, 3822, 3900, 4116, 4200, 4459, 4550, 4802, 4900, 5096, 5145, 5460, 5880, 6370, 6825, 6860, 7203, 7350, 7644, 7800, 8232, 8575, 8918, 9100, 9555, 9604, 9800, 10290, 10920, 12005, 12740, 13377, 13650, 13720, 14406, 14700, 15288, 15925, 17150, 17836, 18200, 19110, 19208, 20580, 22295, 24010, 25480, 25725, 26754, 27300, 28812, 29400, 31213, 31850, 34300, 35672, 36015, 38220, 41160, 44590, 47775, 48020, 51450, 53508, 54600, 57624, 60025, 62426, 63700, 66885, 68600, 72030, 76440, 89180, 93639, 95550, 96040, 102900, 107016, 111475, 120050, 124852, 127400, 133770, 144060, 156065, 178360, 180075, 187278, 191100, 205800, 222950, 240100, 249704, 267540, 288120, 312130, 334425, 360150, 374556, 382200, 445900, 468195, 480200, 535080, 624260, 668850, 720300, 749112, 780325, 891800, 936390, 1248520, 1337700, 1440600, 1560650, 1872780, 2340975, 2675400, 3121300, 3745560, 4681950, 6242600, 9363900, 18727800]

約数ペア:

[(1, 18727800), (2, 9363900), (3, 6242600), (4, 4681950), (5, 3745560), (6, 3121300), (7, 2675400), (8, 2340975), (10, 1872780), (12, 1560650), (13, 1440600), (14, 1337700), (15, 1248520), (20, 936390), (21, 891800), (24, 780325), (25, 749112), (26, 720300), (28, 668850), (30, 624260), (35, 535080), (39, 480200), (40, 468195), (42, 445900), (49, 382200), (50, 374556), (52, 360150), (56, 334425), (60, 312130), (65, 288120), (70, 267540), (75, 249704), (78, 240100), (84, 222950), (91, 205800), (98, 191100), (100, 187278), (104, 180075), (105, 178360), (120, 156065), (130, 144060), (140, 133770), (147, 127400), (150, 124852), (156, 120050), (168, 111475), (175, 107016), (182, 102900), (195, 96040), (196, 95550), (200, 93639), (210, 89180), (245, 76440), (260, 72030), (273, 68600), (280, 66885), (294, 63700), (300, 62426), (312, 60025), (325, 57624), (343, 54600), (350, 53508), (364, 51450), (390, 48020), (392, 47775), (420, 44590), (455, 41160), (490, 38220), (520, 36015), (525, 35672), (546, 34300), (588, 31850), (600, 31213), (637, 29400), (650, 28812), (686, 27300), (700, 26754), (728, 25725), (735, 25480), (780, 24010), (840, 22295), (910, 20580), (975, 19208), (980, 19110), (1029, 18200), (1050, 17836), (1092, 17150), (1176, 15925), (1225, 15288), (1274, 14700), (1300, 14406), (1365, 13720), (1372, 13650), (1400, 13377), (1470, 12740), (1560, 12005), (1715, 10920), (1820, 10290), (1911, 9800), (1950, 9604), (1960, 9555), (2058, 9100), (2100, 8918), (2184, 8575), (2275, 8232), (2401, 7800), (2450, 7644), (2548, 7350), (2600, 7203), (2730, 6860), (2744, 6825), (2940, 6370), (3185, 5880), (3430, 5460), (3640, 5145), (3675, 5096), (3822, 4900), (3900, 4802), (4116, 4550), (4200, 4459)]