31917290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{691}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 59788800

約数和(自身を除く): 27871510

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 691, 745, 1382, 1490, 3455, 4619, 6910, 9238, 21421, 23095, 42842, 46190, 102959, 107105, 205918, 214210, 514795, 1029590, 3191729, 6383458, 15958645, 31917290]

約数ペア:

[(1, 31917290), (2, 15958645), (5, 6383458), (10, 3191729), (31, 1029590), (62, 514795), (149, 214210), (155, 205918), (298, 107105), (310, 102959), (691, 46190), (745, 42842), (1382, 23095), (1490, 21421), (3455, 9238), (4619, 6910)]