64554975

素因数分解:

$3^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:542

約数の個数: 60

約数和(自身を含む): 121532400

約数和(自身を除く): 56977425

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 355, 405, 449, 639, 675, 1065, 1347, 1775, 1917, 2025, 2245, 3195, 4041, 5325, 5751, 6735, 9585, 11225, 12123, 15975, 20205, 28755, 31879, 33675, 36369, 47925, 60615, 95637, 101025, 143775, 159395, 181845, 286911, 303075, 478185, 796975, 860733, 909225, 1434555, 2390925, 2582199, 4303665, 7172775, 12910995, 21518325, 64554975]

約数ペア:

[(1, 64554975), (3, 21518325), (5, 12910995), (9, 7172775), (15, 4303665), (25, 2582199), (27, 2390925), (45, 1434555), (71, 909225), (75, 860733), (81, 796975), (135, 478185), (213, 303075), (225, 286911), (355, 181845), (405, 159395), (449, 143775), (639, 101025), (675, 95637), (1065, 60615), (1347, 47925), (1775, 36369), (1917, 33675), (2025, 31879), (2245, 28755), (3195, 20205), (4041, 15975), (5325, 12123), (5751, 11225), (6735, 9585)]