20199782170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{16921}}^1$

素因数の和:17111

約数の個数: 64

約数和(自身を含む): 39280700160

約数和(自身を除く): 19080917990

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 103, 122, 190, 206, 305, 515, 610, 1030, 1159, 1957, 2318, 3914, 5795, 6283, 9785, 11590, 12566, 16921, 19570, 31415, 33842, 62830, 84605, 119377, 169210, 238754, 321499, 596885, 642998, 1032181, 1193770, 1607495, 1742863, 2064362, 3214990, 3485726, 5160905, 8714315, 10321810, 17428630, 19611439, 33114397, 39222878, 66228794, 98057195, 106314643, 165571985, 196114390, 212629286, 331143970, 531573215, 1063146430, 2019978217, 4039956434, 10099891085, 20199782170]

約数ペア:

[(1, 20199782170), (2, 10099891085), (5, 4039956434), (10, 2019978217), (19, 1063146430), (38, 531573215), (61, 331143970), (95, 212629286), (103, 196114390), (122, 165571985), (190, 106314643), (206, 98057195), (305, 66228794), (515, 39222878), (610, 33114397), (1030, 19611439), (1159, 17428630), (1957, 10321810), (2318, 8714315), (3914, 5160905), (5795, 3485726), (6283, 3214990), (9785, 2064362), (11590, 1742863), (12566, 1607495), (16921, 1193770), (19570, 1032181), (31415, 642998), (33842, 596885), (62830, 321499), (84605, 238754), (119377, 169210)]