320565553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:709

約数の個数: 32

約数和(自身を含む): 409973760

約数和(自身を除く): 89408207

約数列:

[1, 7, 11, 61, 77, 139, 427, 491, 671, 973, 1529, 3437, 4697, 5401, 8479, 10703, 29951, 37807, 59353, 68249, 93269, 209657, 329461, 477743, 652883, 750739, 2306227, 4163189, 5255173, 29142323, 45795079, 320565553]

約数ペア:

[(1, 320565553), (7, 45795079), (11, 29142323), (61, 5255173), (77, 4163189), (139, 2306227), (427, 750739), (491, 652883), (671, 477743), (973, 329461), (1529, 209657), (3437, 93269), (4697, 68249), (5401, 59353), (8479, 37807), (10703, 29951)]