20155178720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{9431}}^1$

素因数の和:9521

約数の個数: 144

約数和(自身を含む): 51618355488

約数和(自身を除く): 31463176768

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 37, 38, 40, 74, 76, 80, 95, 148, 152, 160, 185, 190, 296, 304, 361, 370, 380, 592, 608, 703, 722, 740, 760, 1184, 1406, 1444, 1480, 1520, 1805, 2812, 2888, 2960, 3040, 3515, 3610, 5624, 5776, 5920, 7030, 7220, 9431, 11248, 11552, 13357, 14060, 14440, 18862, 22496, 26714, 28120, 28880, 37724, 47155, 53428, 56240, 57760, 66785, 75448, 94310, 106856, 112480, 133570, 150896, 179189, 188620, 213712, 267140, 301792, 348947, 358378, 377240, 427424, 534280, 697894, 716756, 754480, 895945, 1068560, 1395788, 1433512, 1508960, 1744735, 1791890, 2137120, 2791576, 2867024, 3404591, 3489470, 3583780, 5583152, 5734048, 6629993, 6809182, 6978940, 7167560, 11166304, 13259986, 13618364, 13957880, 14335120, 17022955, 26519972, 27236728, 27915760, 28670240, 33149965, 34045910, 53039944, 54473456, 55831520, 66299930, 68091820, 106079888, 108946912, 125969867, 132599860, 136183640, 212159776, 251939734, 265199720, 272367280, 503879468, 530399440, 544734560, 629849335, 1007758936, 1060798880, 1259698670, 2015517872, 2519397340, 4031035744, 5038794680, 10077589360, 20155178720]

約数ペア:

[(1, 20155178720), (2, 10077589360), (4, 5038794680), (5, 4031035744), (8, 2519397340), (10, 2015517872), (16, 1259698670), (19, 1060798880), (20, 1007758936), (32, 629849335), (37, 544734560), (38, 530399440), (40, 503879468), (74, 272367280), (76, 265199720), (80, 251939734), (95, 212159776), (148, 136183640), (152, 132599860), (160, 125969867), (185, 108946912), (190, 106079888), (296, 68091820), (304, 66299930), (361, 55831520), (370, 54473456), (380, 53039944), (592, 34045910), (608, 33149965), (703, 28670240), (722, 27915760), (740, 27236728), (760, 26519972), (1184, 17022955), (1406, 14335120), (1444, 13957880), (1480, 13618364), (1520, 13259986), (1805, 11166304), (2812, 7167560), (2888, 6978940), (2960, 6809182), (3040, 6629993), (3515, 5734048), (3610, 5583152), (5624, 3583780), (5776, 3489470), (5920, 3404591), (7030, 2867024), (7220, 2791576), (9431, 2137120), (11248, 1791890), (11552, 1744735), (13357, 1508960), (14060, 1433512), (14440, 1395788), (18862, 1068560), (22496, 895945), (26714, 754480), (28120, 716756), (28880, 697894), (37724, 534280), (47155, 427424), (53428, 377240), (56240, 358378), (57760, 348947), (66785, 301792), (75448, 267140), (94310, 213712), (106856, 188620), (112480, 179189), (133570, 150896)]