31621455

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 28253745

約数列:

[1, 3, 5, 9, 15, 27, 29, 41, 45, 87, 123, 135, 145, 197, 205, 261, 369, 435, 591, 615, 783, 985, 1107, 1189, 1305, 1773, 1845, 2955, 3567, 3915, 5319, 5535, 5713, 5945, 8077, 8865, 10701, 17139, 17835, 24231, 26595, 28565, 32103, 40385, 51417, 53505, 72693, 85695, 121155, 154251, 160515, 218079, 234233, 257085, 363465, 702699, 771255, 1090395, 1171165, 2108097, 3513495, 6324291, 10540485, 31621455]

約数ペア:

[(1, 31621455), (3, 10540485), (5, 6324291), (9, 3513495), (15, 2108097), (27, 1171165), (29, 1090395), (41, 771255), (45, 702699), (87, 363465), (123, 257085), (135, 234233), (145, 218079), (197, 160515), (205, 154251), (261, 121155), (369, 85695), (435, 72693), (591, 53505), (615, 51417), (783, 40385), (985, 32103), (1107, 28565), (1189, 26595), (1305, 24231), (1773, 17835), (1845, 17139), (2955, 10701), (3567, 8865), (3915, 8077), (5319, 5945), (5535, 5713)]