129403220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2\times {\mathrm{101}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 290069640

約数和(自身を除く): 160666420

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 101, 116, 145, 188, 202, 235, 290, 404, 470, 505, 580, 940, 1010, 1363, 2020, 2209, 2726, 2929, 4418, 4747, 5452, 5858, 6815, 8836, 9494, 11045, 11716, 13630, 14645, 18988, 22090, 23735, 27260, 29290, 44180, 47470, 58580, 64061, 94940, 128122, 137663, 223109, 256244, 275326, 320305, 446218, 550652, 640610, 688315, 892436, 1115545, 1281220, 1376630, 2231090, 2753260, 4462180, 6470161, 12940322, 25880644, 32350805, 64701610, 129403220]

約数ペア:

[(1, 129403220), (2, 64701610), (4, 32350805), (5, 25880644), (10, 12940322), (20, 6470161), (29, 4462180), (47, 2753260), (58, 2231090), (94, 1376630), (101, 1281220), (116, 1115545), (145, 892436), (188, 688315), (202, 640610), (235, 550652), (290, 446218), (404, 320305), (470, 275326), (505, 256244), (580, 223109), (940, 137663), (1010, 128122), (1363, 94940), (2020, 64061), (2209, 58580), (2726, 47470), (2929, 44180), (4418, 29290), (4747, 27260), (5452, 23735), (5858, 22090), (6815, 18988), (8836, 14645), (9494, 13630), (11045, 11716)]