51988240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20963}}^1$

素因数の和:21007

約数の個数: 40

約数和(自身を含む): 124777728

約数和(自身を除く): 72789488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20963, 41926, 83852, 104815, 167704, 209630, 335408, 419260, 649853, 838520, 1299706, 1677040, 2599412, 3249265, 5198824, 6498530, 10397648, 12997060, 25994120, 51988240]

約数ペア:

[(1, 51988240), (2, 25994120), (4, 12997060), (5, 10397648), (8, 6498530), (10, 5198824), (16, 3249265), (20, 2599412), (31, 1677040), (40, 1299706), (62, 838520), (80, 649853), (124, 419260), (155, 335408), (248, 209630), (310, 167704), (496, 104815), (620, 83852), (1240, 41926), (2480, 20963)]