640741500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{20341}}^1$

素因数の和:20373

約数の個数: 144

約数和(自身を含む): 2310200256

約数和(自身を除く): 1669458756

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 1050, 1125, 1260, 1500, 1575, 1750, 2100, 2250, 2625, 3150, 3500, 4500, 5250, 6300, 7875, 10500, 15750, 20341, 31500, 40682, 61023, 81364, 101705, 122046, 142387, 183069, 203410, 244092, 284774, 305115, 366138, 406820, 427161, 508525, 569548, 610230, 711935, 732276, 854322, 915345, 1017050, 1220460, 1281483, 1423870, 1525575, 1708644, 1830690, 2034100, 2135805, 2542625, 2562966, 2847740, 3051150, 3559675, 3661380, 4271610, 4576725, 5085250, 5125932, 6102300, 6407415, 7119350, 7627875, 8543220, 9153450, 10170500, 10679025, 12814830, 14238700, 15255750, 17798375, 18306900, 21358050, 22883625, 25629660, 30511500, 32037075, 35596750, 42716100, 45767250, 53395125, 64074150, 71193500, 91534500, 106790250, 128148300, 160185375, 213580500, 320370750, 640741500]

約数ペア:

[(1, 640741500), (2, 320370750), (3, 213580500), (4, 160185375), (5, 128148300), (6, 106790250), (7, 91534500), (9, 71193500), (10, 64074150), (12, 53395125), (14, 45767250), (15, 42716100), (18, 35596750), (20, 32037075), (21, 30511500), (25, 25629660), (28, 22883625), (30, 21358050), (35, 18306900), (36, 17798375), (42, 15255750), (45, 14238700), (50, 12814830), (60, 10679025), (63, 10170500), (70, 9153450), (75, 8543220), (84, 7627875), (90, 7119350), (100, 6407415), (105, 6102300), (125, 5125932), (126, 5085250), (140, 4576725), (150, 4271610), (175, 3661380), (180, 3559675), (210, 3051150), (225, 2847740), (250, 2562966), (252, 2542625), (300, 2135805), (315, 2034100), (350, 1830690), (375, 1708644), (420, 1525575), (450, 1423870), (500, 1281483), (525, 1220460), (630, 1017050), (700, 915345), (750, 854322), (875, 732276), (900, 711935), (1050, 610230), (1125, 569548), (1260, 508525), (1500, 427161), (1575, 406820), (1750, 366138), (2100, 305115), (2250, 284774), (2625, 244092), (3150, 203410), (3500, 183069), (4500, 142387), (5250, 122046), (6300, 101705), (7875, 81364), (10500, 61023), (15750, 40682), (20341, 31500)]