245416210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:643

約数の個数: 64

約数和(自身を含む): 500048640

約数和(自身を除く): 254632430

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 211, 230, 299, 389, 422, 598, 778, 1055, 1495, 1945, 2110, 2743, 2990, 3890, 4853, 5057, 5486, 8947, 9706, 10114, 13715, 17894, 24265, 25285, 27430, 44735, 48530, 50570, 63089, 82079, 89470, 116311, 126178, 164158, 232622, 315445, 410395, 581555, 630890, 820790, 1067027, 1163110, 1887817, 2134054, 3775634, 5335135, 9439085, 10670270, 18878170, 24541621, 49083242, 122708105, 245416210]

約数ペア:

[(1, 245416210), (2, 122708105), (5, 49083242), (10, 24541621), (13, 18878170), (23, 10670270), (26, 9439085), (46, 5335135), (65, 3775634), (115, 2134054), (130, 1887817), (211, 1163110), (230, 1067027), (299, 820790), (389, 630890), (422, 581555), (598, 410395), (778, 315445), (1055, 232622), (1495, 164158), (1945, 126178), (2110, 116311), (2743, 89470), (2990, 82079), (3890, 63089), (4853, 50570), (5057, 48530), (5486, 44735), (8947, 27430), (9706, 25285), (10114, 24265), (13715, 17894)]