15420640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3109}}^1$

素因数の和:3155

約数の個数: 48

約数和(自身を含む): 37618560

約数和(自身を除く): 22197920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3109, 4960, 6218, 12436, 15545, 24872, 31090, 49744, 62180, 96379, 99488, 124360, 192758, 248720, 385516, 481895, 497440, 771032, 963790, 1542064, 1927580, 3084128, 3855160, 7710320, 15420640]

約数ペア:

[(1, 15420640), (2, 7710320), (4, 3855160), (5, 3084128), (8, 1927580), (10, 1542064), (16, 963790), (20, 771032), (31, 497440), (32, 481895), (40, 385516), (62, 248720), (80, 192758), (124, 124360), (155, 99488), (160, 96379), (248, 62180), (310, 49744), (496, 31090), (620, 24872), (992, 15545), (1240, 12436), (2480, 6218), (3109, 4960)]