20262840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 47474760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 419, 465, 520, 620, 744, 780, 806, 838, 930, 1209, 1240, 1257, 1560, 1612, 1676, 1860, 2015, 2095, 2418, 2514, 3224, 3352, 3720, 4030, 4190, 4836, 5028, 5447, 6045, 6285, 8060, 8380, 9672, 10056, 10894, 12090, 12570, 12989, 16120, 16341, 16760, 21788, 24180, 25140, 25978, 27235, 32682, 38967, 43576, 48360, 50280, 51956, 54470, 64945, 65364, 77934, 81705, 103912, 108940, 129890, 130728, 155868, 163410, 168857, 194835, 217880, 259780, 311736, 326820, 337714, 389670, 506571, 519560, 653640, 675428, 779340, 844285, 1013142, 1350856, 1558680, 1688570, 2026284, 2532855, 3377140, 4052568, 5065710, 6754280, 10131420, 20262840]

約数ペア:

[(1, 20262840), (2, 10131420), (3, 6754280), (4, 5065710), (5, 4052568), (6, 3377140), (8, 2532855), (10, 2026284), (12, 1688570), (13, 1558680), (15, 1350856), (20, 1013142), (24, 844285), (26, 779340), (30, 675428), (31, 653640), (39, 519560), (40, 506571), (52, 389670), (60, 337714), (62, 326820), (65, 311736), (78, 259780), (93, 217880), (104, 194835), (120, 168857), (124, 163410), (130, 155868), (155, 130728), (156, 129890), (186, 108940), (195, 103912), (248, 81705), (260, 77934), (310, 65364), (312, 64945), (372, 54470), (390, 51956), (403, 50280), (419, 48360), (465, 43576), (520, 38967), (620, 32682), (744, 27235), (780, 25978), (806, 25140), (838, 24180), (930, 21788), (1209, 16760), (1240, 16341), (1257, 16120), (1560, 12989), (1612, 12570), (1676, 12090), (1860, 10894), (2015, 10056), (2095, 9672), (2418, 8380), (2514, 8060), (3224, 6285), (3352, 6045), (3720, 5447), (4030, 5028), (4190, 4836)]