131268880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1291}}^1$

素因数の和:1376

約数の個数: 80

約数和(自身を含む): 322979328

約数和(自身を除く): 191710448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1291, 1640, 2480, 2542, 2582, 3280, 5084, 5164, 6355, 6455, 10168, 10328, 12710, 12910, 20336, 20656, 25420, 25820, 40021, 50840, 51640, 52931, 80042, 101680, 103280, 105862, 160084, 200105, 211724, 264655, 320168, 400210, 423448, 529310, 640336, 800420, 846896, 1058620, 1600840, 1640861, 2117240, 3201680, 3281722, 4234480, 6563444, 8204305, 13126888, 16408610, 26253776, 32817220, 65634440, 131268880]

約数ペア:

[(1, 131268880), (2, 65634440), (4, 32817220), (5, 26253776), (8, 16408610), (10, 13126888), (16, 8204305), (20, 6563444), (31, 4234480), (40, 3281722), (41, 3201680), (62, 2117240), (80, 1640861), (82, 1600840), (124, 1058620), (155, 846896), (164, 800420), (205, 640336), (248, 529310), (310, 423448), (328, 400210), (410, 320168), (496, 264655), (620, 211724), (656, 200105), (820, 160084), (1240, 105862), (1271, 103280), (1291, 101680), (1640, 80042), (2480, 52931), (2542, 51640), (2582, 50840), (3280, 40021), (5084, 25820), (5164, 25420), (6355, 20656), (6455, 20336), (10168, 12910), (10328, 12710)]