12745240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18743}}^1$

素因数の和:18771

約数の個数: 32

約数和(自身を含む): 30365280

約数和(自身を除く): 17620040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 18743, 37486, 74972, 93715, 149944, 187430, 318631, 374860, 637262, 749720, 1274524, 1593155, 2549048, 3186310, 6372620, 12745240]

約数ペア:

[(1, 12745240), (2, 6372620), (4, 3186310), (5, 2549048), (8, 1593155), (10, 1274524), (17, 749720), (20, 637262), (34, 374860), (40, 318631), (68, 187430), (85, 149944), (136, 93715), (170, 74972), (340, 37486), (680, 18743)]