290438564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{811}}^1$

素因数の和:996

約数の個数: 48

約数和(自身を含む): 561488256

約数和(自身を除く): 271049692

約数列:

[1, 2, 4, 13, 26, 52, 71, 97, 142, 194, 284, 388, 811, 923, 1261, 1622, 1846, 2522, 3244, 3692, 5044, 6887, 10543, 13774, 21086, 27548, 42172, 57581, 78667, 89531, 115162, 157334, 179062, 230324, 314668, 358124, 748553, 1022671, 1497106, 2045342, 2994212, 4090684, 5585357, 11170714, 22341428, 72609641, 145219282, 290438564]

約数ペア:

[(1, 290438564), (2, 145219282), (4, 72609641), (13, 22341428), (26, 11170714), (52, 5585357), (71, 4090684), (97, 2994212), (142, 2045342), (194, 1497106), (284, 1022671), (388, 748553), (811, 358124), (923, 314668), (1261, 230324), (1622, 179062), (1846, 157334), (2522, 115162), (3244, 89531), (3692, 78667), (5044, 57581), (6887, 42172), (10543, 27548), (13774, 21086)]