145481960

素因数分解:

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

素因数の和:21558

約数の個数: 48

約数和(自身を含む): 354467340

約数和(自身を除く): 208985380

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 21521, 43042, 86084, 107605, 172168, 215210, 279773, 430420, 559546, 860840, 1119092, 1398865, 2238184, 2797730, 3637049, 5595460, 7274098, 11190920, 14548196, 18185245, 29096392, 36370490, 72740980, 145481960]

約数ペア:

[(1, 145481960), (2, 72740980), (4, 36370490), (5, 29096392), (8, 18185245), (10, 14548196), (13, 11190920), (20, 7274098), (26, 5595460), (40, 3637049), (52, 2797730), (65, 2238184), (104, 1398865), (130, 1119092), (169, 860840), (260, 559546), (338, 430420), (520, 279773), (676, 215210), (845, 172168), (1352, 107605), (1690, 86084), (3380, 43042), (6760, 21521)]