18529156940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{609913}}^1$

素因数の和:609967

約数の個数: 72

約数和(自身を含む): 46724291712

約数和(自身を除く): 28195134772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 7595, 15190, 30380, 609913, 1219826, 2439652, 3049565, 4269391, 6099130, 8538782, 12198260, 17077564, 18907303, 21346955, 29885737, 37814606, 42693910, 59771474, 75629212, 85387820, 94536515, 119542948, 132351121, 149428685, 189073030, 264702242, 298857370, 378146060, 529404484, 597714740, 661755605, 926457847, 1323511210, 1852915694, 2647022420, 3705831388, 4632289235, 9264578470, 18529156940]

約数ペア:

[(1, 18529156940), (2, 9264578470), (4, 4632289235), (5, 3705831388), (7, 2647022420), (10, 1852915694), (14, 1323511210), (20, 926457847), (28, 661755605), (31, 597714740), (35, 529404484), (49, 378146060), (62, 298857370), (70, 264702242), (98, 189073030), (124, 149428685), (140, 132351121), (155, 119542948), (196, 94536515), (217, 85387820), (245, 75629212), (310, 59771474), (434, 42693910), (490, 37814606), (620, 29885737), (868, 21346955), (980, 18907303), (1085, 17077564), (1519, 12198260), (2170, 8538782), (3038, 6099130), (4340, 4269391), (6076, 3049565), (7595, 2439652), (15190, 1219826), (30380, 609913)]