65856800

素因数分解:

$2^5\times 5^2\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 72

約数和(自身を含む): 161989632

約数和(自身を除く): 96132832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 191, 200, 382, 400, 431, 764, 800, 862, 955, 1528, 1724, 1910, 2155, 3056, 3448, 3820, 4310, 4775, 6112, 6896, 7640, 8620, 9550, 10775, 13792, 15280, 17240, 19100, 21550, 30560, 34480, 38200, 43100, 68960, 76400, 82321, 86200, 152800, 164642, 172400, 329284, 344800, 411605, 658568, 823210, 1317136, 1646420, 2058025, 2634272, 3292840, 4116050, 6585680, 8232100, 13171360, 16464200, 32928400, 65856800]

約数ペア:

[(1, 65856800), (2, 32928400), (4, 16464200), (5, 13171360), (8, 8232100), (10, 6585680), (16, 4116050), (20, 3292840), (25, 2634272), (32, 2058025), (40, 1646420), (50, 1317136), (80, 823210), (100, 658568), (160, 411605), (191, 344800), (200, 329284), (382, 172400), (400, 164642), (431, 152800), (764, 86200), (800, 82321), (862, 76400), (955, 68960), (1528, 43100), (1724, 38200), (1910, 34480), (2155, 30560), (3056, 21550), (3448, 19100), (3820, 17240), (4310, 15280), (4775, 13792), (6112, 10775), (6896, 9550), (7640, 8620)]