90725380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{881}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 201519360

約数和(自身を除く): 110793980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 271, 380, 542, 881, 1084, 1355, 1762, 2710, 3524, 4405, 5149, 5420, 8810, 10298, 16739, 17620, 20596, 25745, 33478, 51490, 66956, 83695, 102980, 167390, 238751, 334780, 477502, 955004, 1193755, 2387510, 4536269, 4775020, 9072538, 18145076, 22681345, 45362690, 90725380]

約数ペア:

[(1, 90725380), (2, 45362690), (4, 22681345), (5, 18145076), (10, 9072538), (19, 4775020), (20, 4536269), (38, 2387510), (76, 1193755), (95, 955004), (190, 477502), (271, 334780), (380, 238751), (542, 167390), (881, 102980), (1084, 83695), (1355, 66956), (1762, 51490), (2710, 33478), (3524, 25745), (4405, 20596), (5149, 17620), (5420, 16739), (8810, 10298)]