15916640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3209}}^1$

素因数の和:3255

約数の個数: 48

約数和(自身を含む): 38828160

約数和(自身を除く): 22911520

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, 3209, 4960, 6418, 12836, 16045, 25672, 32090, 51344, 64180, 99479, 102688, 128360, 198958, 256720, 397916, 497395, 513440, 795832, 994790, 1591664, 1989580, 3183328, 3979160, 7958320, 15916640]

約数ペア:

[(1, 15916640), (2, 7958320), (4, 3979160), (5, 3183328), (8, 1989580), (10, 1591664), (16, 994790), (20, 795832), (31, 513440), (32, 497395), (40, 397916), (62, 256720), (80, 198958), (124, 128360), (155, 102688), (160, 99479), (248, 64180), (310, 51344), (496, 32090), (620, 25672), (992, 16045), (1240, 12836), (2480, 6418), (3209, 4960)]