68800080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{653}}^1$

素因数の和:1108

約数の個数: 80

約数和(自身を含む): 214093440

約数和(自身を除く): 145293360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 439, 653, 878, 1306, 1317, 1756, 1959, 2195, 2612, 2634, 3265, 3512, 3918, 4390, 5224, 5268, 6530, 6585, 7024, 7836, 8780, 9795, 10448, 10536, 13060, 13170, 15672, 17560, 19590, 21072, 26120, 26340, 31344, 35120, 39180, 52240, 52680, 78360, 105360, 156720, 286667, 573334, 860001, 1146668, 1433335, 1720002, 2293336, 2866670, 3440004, 4300005, 4586672, 5733340, 6880008, 8600010, 11466680, 13760016, 17200020, 22933360, 34400040, 68800080]

約数ペア:

[(1, 68800080), (2, 34400040), (3, 22933360), (4, 17200020), (5, 13760016), (6, 11466680), (8, 8600010), (10, 6880008), (12, 5733340), (15, 4586672), (16, 4300005), (20, 3440004), (24, 2866670), (30, 2293336), (40, 1720002), (48, 1433335), (60, 1146668), (80, 860001), (120, 573334), (240, 286667), (439, 156720), (653, 105360), (878, 78360), (1306, 52680), (1317, 52240), (1756, 39180), (1959, 35120), (2195, 31344), (2612, 26340), (2634, 26120), (3265, 21072), (3512, 19590), (3918, 17560), (4390, 15672), (5224, 13170), (5268, 13060), (6530, 10536), (6585, 10448), (7024, 9795), (7836, 8780)]