311908640

素因数分解:

$2^5\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9239}}^1$

素因数の和:9465

約数の個数: 48

約数和(自身を含む): 740456640

約数和(自身を除く): 428548000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 6752, 8440, 9239, 16880, 18478, 33760, 36956, 46195, 73912, 92390, 147824, 184780, 295648, 369560, 739120, 1478240, 1949429, 3898858, 7797716, 9747145, 15595432, 19494290, 31190864, 38988580, 62381728, 77977160, 155954320, 311908640]

約数ペア:

[(1, 311908640), (2, 155954320), (4, 77977160), (5, 62381728), (8, 38988580), (10, 31190864), (16, 19494290), (20, 15595432), (32, 9747145), (40, 7797716), (80, 3898858), (160, 1949429), (211, 1478240), (422, 739120), (844, 369560), (1055, 295648), (1688, 184780), (2110, 147824), (3376, 92390), (4220, 73912), (6752, 46195), (8440, 36956), (9239, 33760), (16880, 18478)]