78176020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 180313560

約数和(自身を除く): 102137540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 169, 202, 229, 260, 338, 404, 458, 505, 676, 845, 916, 1010, 1145, 1313, 1690, 2020, 2290, 2626, 2977, 3380, 4580, 5252, 5954, 6565, 11908, 13130, 14885, 17069, 23129, 26260, 29770, 34138, 38701, 46258, 59540, 68276, 77402, 85345, 92516, 115645, 154804, 170690, 193505, 231290, 300677, 341380, 387010, 462580, 601354, 774020, 1202708, 1503385, 3006770, 3908801, 6013540, 7817602, 15635204, 19544005, 39088010, 78176020]

約数ペア:

[(1, 78176020), (2, 39088010), (4, 19544005), (5, 15635204), (10, 7817602), (13, 6013540), (20, 3908801), (26, 3006770), (52, 1503385), (65, 1202708), (101, 774020), (130, 601354), (169, 462580), (202, 387010), (229, 341380), (260, 300677), (338, 231290), (404, 193505), (458, 170690), (505, 154804), (676, 115645), (845, 92516), (916, 85345), (1010, 77402), (1145, 68276), (1313, 59540), (1690, 46258), (2020, 38701), (2290, 34138), (2626, 29770), (2977, 26260), (3380, 23129), (4580, 17069), (5252, 14885), (5954, 13130), (6565, 11908)]