190245640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21521}}^1$

素因数の和:21562

約数の個数: 64

約数和(自身を含む): 488118960

約数和(自身を除く): 297873320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 21521, 43042, 86084, 107605, 172168, 215210, 279773, 365857, 430420, 559546, 731714, 860840, 1119092, 1398865, 1463428, 1829285, 2238184, 2797730, 2926856, 3658570, 4756141, 5595460, 7317140, 9512282, 11190920, 14634280, 19024564, 23780705, 38049128, 47561410, 95122820, 190245640]

約数ペア:

[(1, 190245640), (2, 95122820), (4, 47561410), (5, 38049128), (8, 23780705), (10, 19024564), (13, 14634280), (17, 11190920), (20, 9512282), (26, 7317140), (34, 5595460), (40, 4756141), (52, 3658570), (65, 2926856), (68, 2797730), (85, 2238184), (104, 1829285), (130, 1463428), (136, 1398865), (170, 1119092), (221, 860840), (260, 731714), (340, 559546), (442, 430420), (520, 365857), (680, 279773), (884, 215210), (1105, 172168), (1768, 107605), (2210, 86084), (4420, 43042), (8840, 21521)]