1649262550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{2749}}^1$

素因数の和:2858

約数の個数: 72

約数和(自身を含む): 3369762000

約数和(自身を除く): 1720499450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 169, 325, 338, 355, 650, 710, 845, 923, 1690, 1775, 1846, 2749, 3550, 4225, 4615, 5498, 8450, 9230, 11999, 13745, 23075, 23998, 27490, 35737, 46150, 59995, 68725, 71474, 119990, 137450, 178685, 195179, 299975, 357370, 390358, 464581, 599950, 893425, 929162, 975895, 1786850, 1951790, 2322905, 2537327, 4645810, 4879475, 5074654, 9758950, 11614525, 12686635, 23229050, 25373270, 32985251, 63433175, 65970502, 126866350, 164926255, 329852510, 824631275, 1649262550]

約数ペア:

[(1, 1649262550), (2, 824631275), (5, 329852510), (10, 164926255), (13, 126866350), (25, 65970502), (26, 63433175), (50, 32985251), (65, 25373270), (71, 23229050), (130, 12686635), (142, 11614525), (169, 9758950), (325, 5074654), (338, 4879475), (355, 4645810), (650, 2537327), (710, 2322905), (845, 1951790), (923, 1786850), (1690, 975895), (1775, 929162), (1846, 893425), (2749, 599950), (3550, 464581), (4225, 390358), (4615, 357370), (5498, 299975), (8450, 195179), (9230, 178685), (11999, 137450), (13745, 119990), (23075, 71474), (23998, 68725), (27490, 59995), (35737, 46150)]