2021656325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 2758781760

約数和(自身を除く): 737125435

約数列:

[1, 5, 13, 25, 65, 67, 227, 325, 335, 409, 871, 1135, 1675, 2045, 2951, 4355, 5317, 5675, 10225, 14755, 15209, 21775, 26585, 27403, 73775, 76045, 92843, 132925, 137015, 197717, 356239, 380225, 464215, 685075, 988585, 1206959, 1781195, 2321075, 4942925, 6034795, 6220481, 8905975, 30173975, 31102405, 80866253, 155512025, 404331265, 2021656325]

約数ペア:

[(1, 2021656325), (5, 404331265), (13, 155512025), (25, 80866253), (65, 31102405), (67, 30173975), (227, 8905975), (325, 6220481), (335, 6034795), (409, 4942925), (871, 2321075), (1135, 1781195), (1675, 1206959), (2045, 988585), (2951, 685075), (4355, 464215), (5317, 380225), (5675, 356239), (10225, 197717), (14755, 137015), (15209, 132925), (21775, 92843), (26585, 76045), (27403, 73775)]