90235420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 217147392

約数和(自身を除く): 126911972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 101, 110, 124, 131, 155, 202, 220, 262, 310, 341, 404, 505, 524, 620, 655, 682, 1010, 1111, 1310, 1364, 1441, 1705, 2020, 2222, 2620, 2882, 3131, 3410, 4061, 4444, 5555, 5764, 6262, 6820, 7205, 8122, 11110, 12524, 13231, 14410, 15655, 16244, 20305, 22220, 26462, 28820, 31310, 34441, 40610, 44671, 52924, 62620, 66155, 68882, 81220, 89342, 132310, 137764, 145541, 172205, 178684, 223355, 264620, 291082, 344410, 410161, 446710, 582164, 688820, 727705, 820322, 893420, 1455410, 1640644, 2050805, 2910820, 4101610, 4511771, 8203220, 9023542, 18047084, 22558855, 45117710, 90235420]

約数ペア:

[(1, 90235420), (2, 45117710), (4, 22558855), (5, 18047084), (10, 9023542), (11, 8203220), (20, 4511771), (22, 4101610), (31, 2910820), (44, 2050805), (55, 1640644), (62, 1455410), (101, 893420), (110, 820322), (124, 727705), (131, 688820), (155, 582164), (202, 446710), (220, 410161), (262, 344410), (310, 291082), (341, 264620), (404, 223355), (505, 178684), (524, 172205), (620, 145541), (655, 137764), (682, 132310), (1010, 89342), (1111, 81220), (1310, 68882), (1364, 66155), (1441, 62620), (1705, 52924), (2020, 44671), (2222, 40610), (2620, 34441), (2882, 31310), (3131, 28820), (3410, 26462), (4061, 22220), (4444, 20305), (5555, 16244), (5764, 15655), (6262, 14410), (6820, 13231), (7205, 12524), (8122, 11110)]