90815985

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 179536896

約数和(自身を除く): 88720911

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 47, 65, 81, 117, 135, 141, 195, 235, 351, 367, 405, 423, 585, 611, 705, 1053, 1101, 1269, 1755, 1833, 1835, 2115, 3055, 3303, 3807, 4771, 5265, 5499, 5505, 6345, 9165, 9909, 14313, 16497, 16515, 17249, 19035, 23855, 27495, 29727, 42939, 49491, 49545, 51747, 71565, 82485, 86245, 128817, 148635, 155241, 214695, 224237, 247455, 258735, 386451, 465723, 644085, 672711, 776205, 1121185, 1397169, 1932255, 2018133, 2328615, 3363555, 6054399, 6985845, 10090665, 18163197, 30271995, 90815985]

約数ペア:

[(1, 90815985), (3, 30271995), (5, 18163197), (9, 10090665), (13, 6985845), (15, 6054399), (27, 3363555), (39, 2328615), (45, 2018133), (47, 1932255), (65, 1397169), (81, 1121185), (117, 776205), (135, 672711), (141, 644085), (195, 465723), (235, 386451), (351, 258735), (367, 247455), (405, 224237), (423, 214695), (585, 155241), (611, 148635), (705, 128817), (1053, 86245), (1101, 82485), (1269, 71565), (1755, 51747), (1833, 49545), (1835, 49491), (2115, 42939), (3055, 29727), (3303, 27495), (3807, 23855), (4771, 19035), (5265, 17249), (5499, 16515), (5505, 16497), (6345, 14313), (9165, 9909)]