130771640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 306063360

約数和(自身を除く): 175291720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 620, 647, 652, 815, 1240, 1294, 1304, 1630, 2588, 3235, 3260, 5053, 5176, 6470, 6520, 10106, 12940, 20057, 20212, 25265, 25880, 40114, 40424, 50530, 80228, 100285, 101060, 105461, 160456, 200570, 202120, 210922, 401140, 421844, 527305, 802280, 843688, 1054610, 2109220, 3269291, 4218440, 6538582, 13077164, 16346455, 26154328, 32692910, 65385820, 130771640]

約数ペア:

[(1, 130771640), (2, 65385820), (4, 32692910), (5, 26154328), (8, 16346455), (10, 13077164), (20, 6538582), (31, 4218440), (40, 3269291), (62, 2109220), (124, 1054610), (155, 843688), (163, 802280), (248, 527305), (310, 421844), (326, 401140), (620, 210922), (647, 202120), (652, 200570), (815, 160456), (1240, 105461), (1294, 101060), (1304, 100285), (1630, 80228), (2588, 50530), (3235, 40424), (3260, 40114), (5053, 25880), (5176, 25265), (6470, 20212), (6520, 20057), (10106, 12940)]