12920940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3121}}^1$

素因数の和:3159

約数の個数: 72

約数和(自身を含む): 40910688

約数和(自身を除く): 27989748

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, 3121, 4140, 6242, 9363, 12484, 15605, 18726, 28089, 31210, 37452, 46815, 56178, 62420, 71783, 93630, 112356, 140445, 143566, 187260, 215349, 280890, 287132, 358915, 430698, 561780, 646047, 717830, 861396, 1076745, 1292094, 1435660, 2153490, 2584188, 3230235, 4306980, 6460470, 12920940]

約数ペア:

[(1, 12920940), (2, 6460470), (3, 4306980), (4, 3230235), (5, 2584188), (6, 2153490), (9, 1435660), (10, 1292094), (12, 1076745), (15, 861396), (18, 717830), (20, 646047), (23, 561780), (30, 430698), (36, 358915), (45, 287132), (46, 280890), (60, 215349), (69, 187260), (90, 143566), (92, 140445), (115, 112356), (138, 93630), (180, 71783), (207, 62420), (230, 56178), (276, 46815), (345, 37452), (414, 31210), (460, 28089), (690, 18726), (828, 15605), (1035, 12484), (1380, 9363), (2070, 6242), (3121, 4140)]