209289680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{84391}}^1$

素因数の和:84435

約数の個数: 40

約数和(自身を含む): 502301184

約数和(自身を除く): 293011504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 84391, 168782, 337564, 421955, 675128, 843910, 1350256, 1687820, 2616121, 3375640, 5232242, 6751280, 10464484, 13080605, 20928968, 26161210, 41857936, 52322420, 104644840, 209289680]

約数ペア:

[(1, 209289680), (2, 104644840), (4, 52322420), (5, 41857936), (8, 26161210), (10, 20928968), (16, 13080605), (20, 10464484), (31, 6751280), (40, 5232242), (62, 3375640), (80, 2616121), (124, 1687820), (155, 1350256), (248, 843910), (310, 675128), (496, 421955), (620, 337564), (1240, 168782), (2480, 84391)]