64655740

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 139356000

約数和(自身を除く): 74700260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 157, 236, 295, 314, 349, 590, 628, 698, 785, 1180, 1396, 1570, 1745, 3140, 3490, 6980, 9263, 18526, 20591, 37052, 41182, 46315, 54793, 82364, 92630, 102955, 109586, 185260, 205910, 219172, 273965, 411820, 547930, 1095860, 3232787, 6465574, 12931148, 16163935, 32327870, 64655740]

約数ペア:

[(1, 64655740), (2, 32327870), (4, 16163935), (5, 12931148), (10, 6465574), (20, 3232787), (59, 1095860), (118, 547930), (157, 411820), (236, 273965), (295, 219172), (314, 205910), (349, 185260), (590, 109586), (628, 102955), (698, 92630), (785, 82364), (1180, 54793), (1396, 46315), (1570, 41182), (1745, 37052), (3140, 20591), (3490, 18526), (6980, 9263)]