64747725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6491}}^1$

素因数の和:6530

約数の個数: 48

約数和(自身を含む): 128801280

約数和(自身を除く): 64053555

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 3325, 6491, 9975, 19473, 32455, 45437, 97365, 123329, 136311, 162275, 227185, 369987, 486825, 616645, 681555, 863303, 1135925, 1849935, 2589909, 3083225, 3407775, 4316515, 9249675, 12949545, 21582575, 64747725]

約数ペア:

[(1, 64747725), (3, 21582575), (5, 12949545), (7, 9249675), (15, 4316515), (19, 3407775), (21, 3083225), (25, 2589909), (35, 1849935), (57, 1135925), (75, 863303), (95, 681555), (105, 616645), (133, 486825), (175, 369987), (285, 227185), (399, 162275), (475, 136311), (525, 123329), (665, 97365), (1425, 45437), (1995, 32455), (3325, 19473), (6491, 9975)]