20194688720

素因数分解:

$2^4\times 5^1\times {\mathrm{2633}}^1\times {\mathrm{95873}}^1$

素因数の和:98519

約数の個数: 40

約数和(自身を含む): 46970973576

約数和(自身を除く): 26776284856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2633, 5266, 10532, 13165, 21064, 26330, 42128, 52660, 95873, 105320, 191746, 210640, 383492, 479365, 766984, 958730, 1533968, 1917460, 3834920, 7669840, 252433609, 504867218, 1009734436, 1262168045, 2019468872, 2524336090, 4038937744, 5048672180, 10097344360, 20194688720]

約数ペア:

[(1, 20194688720), (2, 10097344360), (4, 5048672180), (5, 4038937744), (8, 2524336090), (10, 2019468872), (16, 1262168045), (20, 1009734436), (40, 504867218), (80, 252433609), (2633, 7669840), (5266, 3834920), (10532, 1917460), (13165, 1533968), (21064, 958730), (26330, 766984), (42128, 479365), (52660, 383492), (95873, 210640), (105320, 191746)]