20154385992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{240139}}^1$

素因数の和:240430

約数の個数: 64

約数和(自身を含む): 54463752000

約数和(自身を除く): 34309366008

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 269, 312, 538, 807, 1076, 1614, 2152, 3228, 3497, 6456, 6994, 10491, 13988, 20982, 27976, 41964, 83928, 240139, 480278, 720417, 960556, 1440834, 1921112, 2881668, 3121807, 5763336, 6243614, 9365421, 12487228, 18730842, 24974456, 37461684, 64597391, 74923368, 129194782, 193792173, 258389564, 387584346, 516779128, 775168692, 839766083, 1550337384, 1679532166, 2519298249, 3359064332, 5038596498, 6718128664, 10077192996, 20154385992]

約数ペア:

[(1, 20154385992), (2, 10077192996), (3, 6718128664), (4, 5038596498), (6, 3359064332), (8, 2519298249), (12, 1679532166), (13, 1550337384), (24, 839766083), (26, 775168692), (39, 516779128), (52, 387584346), (78, 258389564), (104, 193792173), (156, 129194782), (269, 74923368), (312, 64597391), (538, 37461684), (807, 24974456), (1076, 18730842), (1614, 12487228), (2152, 9365421), (3228, 6243614), (3497, 5763336), (6456, 3121807), (6994, 2881668), (10491, 1921112), (13988, 1440834), (20982, 960556), (27976, 720417), (41964, 480278), (83928, 240139)]