329719640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{135131}}^1$

素因数の和:135203

約数の個数: 32

約数和(自身を含む): 754036560

約数和(自身を除く): 424316920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 135131, 270262, 540524, 675655, 1081048, 1351310, 2702620, 5405240, 8242991, 16485982, 32971964, 41214955, 65943928, 82429910, 164859820, 329719640]

約数ペア:

[(1, 329719640), (2, 164859820), (4, 82429910), (5, 65943928), (8, 41214955), (10, 32971964), (20, 16485982), (40, 8242991), (61, 5405240), (122, 2702620), (244, 1351310), (305, 1081048), (488, 675655), (610, 540524), (1220, 270262), (2440, 135131)]