28959320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55691}}^1$

素因数の和:55715

約数の個数: 32

約数和(自身を含む): 70171920

約数和(自身を除く): 41212600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55691, 111382, 222764, 278455, 445528, 556910, 723983, 1113820, 1447966, 2227640, 2895932, 3619915, 5791864, 7239830, 14479660, 28959320]

約数ペア:

[(1, 28959320), (2, 14479660), (4, 7239830), (5, 5791864), (8, 3619915), (10, 2895932), (13, 2227640), (20, 1447966), (26, 1113820), (40, 723983), (52, 556910), (65, 445528), (104, 278455), (130, 222764), (260, 111382), (520, 55691)]