68990420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6997}}^1$

素因数の和:7052

約数の個数: 48

約数和(自身を含む): 158714640

約数和(自身を除く): 89724220

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 6997, 9860, 13994, 27988, 34985, 69970, 118949, 139940, 202913, 237898, 405826, 475796, 594745, 811652, 1014565, 1189490, 2029130, 2378980, 3449521, 4058260, 6899042, 13798084, 17247605, 34495210, 68990420]

約数ペア:

[(1, 68990420), (2, 34495210), (4, 17247605), (5, 13798084), (10, 6899042), (17, 4058260), (20, 3449521), (29, 2378980), (34, 2029130), (58, 1189490), (68, 1014565), (85, 811652), (116, 594745), (145, 475796), (170, 405826), (290, 237898), (340, 202913), (493, 139940), (580, 118949), (986, 69970), (1972, 34985), (2465, 27988), (4930, 13994), (6997, 9860)]