28864940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1657}}^1$

素因数の和:1746

約数の個数: 48

約数和(自身を含む): 66293472

約数和(自身を除く): 37428532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1657, 1742, 3314, 3484, 4355, 6628, 8285, 8710, 16570, 17420, 21541, 33140, 43082, 86164, 107705, 111019, 215410, 222038, 430820, 444076, 555095, 1110190, 1443247, 2220380, 2886494, 5772988, 7216235, 14432470, 28864940]

約数ペア:

[(1, 28864940), (2, 14432470), (4, 7216235), (5, 5772988), (10, 2886494), (13, 2220380), (20, 1443247), (26, 1110190), (52, 555095), (65, 444076), (67, 430820), (130, 222038), (134, 215410), (260, 111019), (268, 107705), (335, 86164), (670, 43082), (871, 33140), (1340, 21541), (1657, 17420), (1742, 16570), (3314, 8710), (3484, 8285), (4355, 6628)]