1620256560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{823}}^1$

素因数の和:1483

約数の個数: 160

約数和(自身を含む): 5424319488

約数和(自身を除く): 3804062928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 631, 780, 823, 1040, 1262, 1560, 1646, 1893, 2469, 2524, 3120, 3155, 3292, 3786, 4115, 4938, 5048, 6310, 6584, 7572, 8203, 8230, 9465, 9876, 10096, 10699, 12345, 12620, 13168, 15144, 16406, 16460, 18930, 19752, 21398, 24609, 24690, 25240, 30288, 32097, 32812, 32920, 37860, 39504, 41015, 42796, 49218, 49380, 50480, 53495, 64194, 65624, 65840, 75720, 82030, 85592, 98436, 98760, 106990, 123045, 128388, 131248, 151440, 160485, 164060, 171184, 196872, 197520, 213980, 246090, 256776, 320970, 328120, 393744, 427960, 492180, 513552, 519313, 641940, 656240, 855920, 984360, 1038626, 1283880, 1557939, 1968720, 2077252, 2567760, 2596565, 3115878, 4154504, 5193130, 6231756, 6751069, 7789695, 8309008, 10386260, 12463512, 13502138, 15579390, 20253207, 20772520, 24927024, 27004276, 31158780, 33755345, 40506414, 41545040, 54008552, 62317560, 67510690, 81012828, 101266035, 108017104, 124635120, 135021380, 162025656, 202532070, 270042760, 324051312, 405064140, 540085520, 810128280, 1620256560]

約数ペア:

[(1, 1620256560), (2, 810128280), (3, 540085520), (4, 405064140), (5, 324051312), (6, 270042760), (8, 202532070), (10, 162025656), (12, 135021380), (13, 124635120), (15, 108017104), (16, 101266035), (20, 81012828), (24, 67510690), (26, 62317560), (30, 54008552), (39, 41545040), (40, 40506414), (48, 33755345), (52, 31158780), (60, 27004276), (65, 24927024), (78, 20772520), (80, 20253207), (104, 15579390), (120, 13502138), (130, 12463512), (156, 10386260), (195, 8309008), (208, 7789695), (240, 6751069), (260, 6231756), (312, 5193130), (390, 4154504), (520, 3115878), (624, 2596565), (631, 2567760), (780, 2077252), (823, 1968720), (1040, 1557939), (1262, 1283880), (1560, 1038626), (1646, 984360), (1893, 855920), (2469, 656240), (2524, 641940), (3120, 519313), (3155, 513552), (3292, 492180), (3786, 427960), (4115, 393744), (4938, 328120), (5048, 320970), (6310, 256776), (6584, 246090), (7572, 213980), (8203, 197520), (8230, 196872), (9465, 171184), (9876, 164060), (10096, 160485), (10699, 151440), (12345, 131248), (12620, 128388), (13168, 123045), (15144, 106990), (16406, 98760), (16460, 98436), (18930, 85592), (19752, 82030), (21398, 75720), (24609, 65840), (24690, 65624), (25240, 64194), (30288, 53495), (32097, 50480), (32812, 49380), (32920, 49218), (37860, 42796), (39504, 41015)]