19279980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4657}}^1$

素因数の和:4695

約数の個数: 72

約数和(自身を含む): 61038432

約数和(自身を除く): 41758452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4657, 9314, 13971, 18628, 23285, 27942, 41913, 46570, 55884, 69855, 83826, 93140, 107111, 139710, 167652, 209565, 214222, 279420, 321333, 419130, 428444, 535555, 642666, 838260, 963999, 1071110, 1285332, 1606665, 1927998, 2142220, 3213330, 3855996, 4819995, 6426660, 9639990, 19279980]

約数ペア:

[(1, 19279980), (2, 9639990), (3, 6426660), (4, 4819995), (5, 3855996), (6, 3213330), (9, 2142220), (10, 1927998), (12, 1606665), (15, 1285332), (18, 1071110), (20, 963999), (23, 838260), (30, 642666), (36, 535555), (45, 428444), (46, 419130), (60, 321333), (69, 279420), (90, 214222), (92, 209565), (115, 167652), (138, 139710), (180, 107111), (207, 93140), (230, 83826), (276, 69855), (345, 55884), (414, 46570), (460, 41913), (690, 27942), (828, 23285), (1035, 18628), (1380, 13971), (2070, 9314), (4140, 4657)]