90402860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1973}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 198979200

約数和(自身を除く): 108576340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 1973, 2291, 3946, 4582, 7892, 9164, 9865, 11455, 19730, 22910, 39460, 45820, 57217, 114434, 155867, 228868, 286085, 311734, 572170, 623468, 779335, 1144340, 1558670, 3117340, 4520143, 9040286, 18080572, 22600715, 45201430, 90402860]

約数ペア:

[(1, 90402860), (2, 45201430), (4, 22600715), (5, 18080572), (10, 9040286), (20, 4520143), (29, 3117340), (58, 1558670), (79, 1144340), (116, 779335), (145, 623468), (158, 572170), (290, 311734), (316, 286085), (395, 228868), (580, 155867), (790, 114434), (1580, 57217), (1973, 45820), (2291, 39460), (3946, 22910), (4582, 19730), (7892, 11455), (9164, 9865)]