40471240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 95256000

約数和(自身を除く): 54784760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 232, 251, 278, 290, 502, 556, 580, 695, 1004, 1112, 1160, 1255, 1390, 2008, 2510, 2780, 4031, 5020, 5560, 7279, 8062, 10040, 14558, 16124, 20155, 29116, 32248, 34889, 36395, 40310, 58232, 69778, 72790, 80620, 139556, 145580, 161240, 174445, 279112, 291160, 348890, 697780, 1011781, 1395560, 2023562, 4047124, 5058905, 8094248, 10117810, 20235620, 40471240]

約数ペア:

[(1, 40471240), (2, 20235620), (4, 10117810), (5, 8094248), (8, 5058905), (10, 4047124), (20, 2023562), (29, 1395560), (40, 1011781), (58, 697780), (116, 348890), (139, 291160), (145, 279112), (232, 174445), (251, 161240), (278, 145580), (290, 139556), (502, 80620), (556, 72790), (580, 69778), (695, 58232), (1004, 40310), (1112, 36395), (1160, 34889), (1255, 32248), (1390, 29116), (2008, 20155), (2510, 16124), (2780, 14558), (4031, 10040), (5020, 8062), (5560, 7279)]