16288640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 40245120

約数和(自身を除く): 23956480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 821, 992, 1240, 1642, 1984, 2480, 3284, 3968, 4105, 4960, 6568, 8210, 9920, 13136, 16420, 19840, 25451, 26272, 32840, 50902, 52544, 65680, 101804, 105088, 127255, 131360, 203608, 254510, 262720, 407216, 509020, 525440, 814432, 1018040, 1628864, 2036080, 3257728, 4072160, 8144320, 16288640]

約数ペア:

[(1, 16288640), (2, 8144320), (4, 4072160), (5, 3257728), (8, 2036080), (10, 1628864), (16, 1018040), (20, 814432), (31, 525440), (32, 509020), (40, 407216), (62, 262720), (64, 254510), (80, 203608), (124, 131360), (128, 127255), (155, 105088), (160, 101804), (248, 65680), (310, 52544), (320, 50902), (496, 32840), (620, 26272), (640, 25451), (821, 19840), (992, 16420), (1240, 13136), (1642, 9920), (1984, 8210), (2480, 6568), (3284, 4960), (3968, 4105)]