15801320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12743}}^1$

素因数の和:12785

約数の個数: 32

約数和(自身を含む): 36702720

約数和(自身を除く): 20901400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12743, 25486, 50972, 63715, 101944, 127430, 254860, 395033, 509720, 790066, 1580132, 1975165, 3160264, 3950330, 7900660, 15801320]

約数ペア:

[(1, 15801320), (2, 7900660), (4, 3950330), (5, 3160264), (8, 1975165), (10, 1580132), (20, 790066), (31, 509720), (40, 395033), (62, 254860), (124, 127430), (155, 101944), (248, 63715), (310, 50972), (620, 25486), (1240, 12743)]