28949960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55673}}^1$

素因数の和:55697

約数の個数: 32

約数和(自身を含む): 70149240

約数和(自身を除く): 41199280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55673, 111346, 222692, 278365, 445384, 556730, 723749, 1113460, 1447498, 2226920, 2894996, 3618745, 5789992, 7237490, 14474980, 28949960]

約数ペア:

[(1, 28949960), (2, 14474980), (4, 7237490), (5, 5789992), (8, 3618745), (10, 2894996), (13, 2226920), (20, 1447498), (26, 1113460), (40, 723749), (52, 556730), (65, 445384), (104, 278365), (130, 222692), (260, 111346), (520, 55673)]