28871960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4271}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 70359840

約数和(自身を除く): 41487880

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, 4271, 6760, 8542, 17084, 21355, 34168, 42710, 55523, 85420, 111046, 170840, 222092, 277615, 444184, 555230, 721799, 1110460, 1443598, 2220920, 2887196, 3608995, 5774392, 7217990, 14435980, 28871960]

約数ペア:

[(1, 28871960), (2, 14435980), (4, 7217990), (5, 5774392), (8, 3608995), (10, 2887196), (13, 2220920), (20, 1443598), (26, 1110460), (40, 721799), (52, 555230), (65, 444184), (104, 277615), (130, 222092), (169, 170840), (260, 111046), (338, 85420), (520, 55523), (676, 42710), (845, 34168), (1352, 21355), (1690, 17084), (3380, 8542), (4271, 6760)]