1280498895

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31723}}^1$

素因数の和:31773

約数の個数: 64

約数和(自身を含む): 2558223360

約数和(自身を除く): 1277724465

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 585, 621, 897, 1035, 1495, 1755, 2691, 3105, 4485, 8073, 13455, 31723, 40365, 95169, 158615, 285507, 412399, 475845, 729629, 856521, 1237197, 1427535, 2061995, 2188887, 3648145, 3711591, 4282605, 6185985, 6566661, 9485177, 10944435, 11134773, 18557955, 19699983, 28455531, 32833305, 47425885, 55673865, 85366593, 98499915, 142277655, 256099779, 426832965, 1280498895]

約数ペア:

[(1, 1280498895), (3, 426832965), (5, 256099779), (9, 142277655), (13, 98499915), (15, 85366593), (23, 55673865), (27, 47425885), (39, 32833305), (45, 28455531), (65, 19699983), (69, 18557955), (115, 11134773), (117, 10944435), (135, 9485177), (195, 6566661), (207, 6185985), (299, 4282605), (345, 3711591), (351, 3648145), (585, 2188887), (621, 2061995), (897, 1427535), (1035, 1237197), (1495, 856521), (1755, 729629), (2691, 475845), (3105, 412399), (4485, 285507), (8073, 158615), (13455, 95169), (31723, 40365)]