15230920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 36080640

約数和(自身を除く): 20849720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 173, 248, 284, 310, 346, 355, 568, 620, 692, 710, 865, 1240, 1384, 1420, 1730, 2201, 2840, 3460, 4402, 5363, 6920, 8804, 10726, 11005, 12283, 17608, 21452, 22010, 24566, 26815, 42904, 44020, 49132, 53630, 61415, 88040, 98264, 107260, 122830, 214520, 245660, 380773, 491320, 761546, 1523092, 1903865, 3046184, 3807730, 7615460, 15230920]

約数ペア:

[(1, 15230920), (2, 7615460), (4, 3807730), (5, 3046184), (8, 1903865), (10, 1523092), (20, 761546), (31, 491320), (40, 380773), (62, 245660), (71, 214520), (124, 122830), (142, 107260), (155, 98264), (173, 88040), (248, 61415), (284, 53630), (310, 49132), (346, 44020), (355, 42904), (568, 26815), (620, 24566), (692, 22010), (710, 21452), (865, 17608), (1240, 12283), (1384, 11005), (1420, 10726), (1730, 8804), (2201, 6920), (2840, 5363), (3460, 4402)]