905605000

素因数分解:

$2^3\times 5^4\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2648

約数の個数: 80

約数和(自身を含む): 2152560960

約数和(自身を除く): 1246955960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 500, 568, 625, 710, 1000, 1250, 1420, 1775, 2500, 2551, 2840, 3550, 5000, 5102, 7100, 8875, 10204, 12755, 14200, 17750, 20408, 25510, 35500, 44375, 51020, 63775, 71000, 88750, 102040, 127550, 177500, 181121, 255100, 318875, 355000, 362242, 510200, 637750, 724484, 905605, 1275500, 1448968, 1594375, 1811210, 2551000, 3188750, 3622420, 4528025, 6377500, 7244840, 9056050, 12755000, 18112100, 22640125, 36224200, 45280250, 90560500, 113200625, 181121000, 226401250, 452802500, 905605000]

約数ペア:

[(1, 905605000), (2, 452802500), (4, 226401250), (5, 181121000), (8, 113200625), (10, 90560500), (20, 45280250), (25, 36224200), (40, 22640125), (50, 18112100), (71, 12755000), (100, 9056050), (125, 7244840), (142, 6377500), (200, 4528025), (250, 3622420), (284, 3188750), (355, 2551000), (500, 1811210), (568, 1594375), (625, 1448968), (710, 1275500), (1000, 905605), (1250, 724484), (1420, 637750), (1775, 510200), (2500, 362242), (2551, 355000), (2840, 318875), (3550, 255100), (5000, 181121), (5102, 177500), (7100, 127550), (8875, 102040), (10204, 88750), (12755, 71000), (14200, 63775), (17750, 51020), (20408, 44375), (25510, 35500)]