78226120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{569}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 201916800

約数和(自身を除く): 123690680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491, 569, 982, 1138, 1964, 2276, 2455, 2845, 3437, 3928, 3983, 4552, 4910, 5690, 6874, 7966, 9820, 11380, 13748, 15932, 17185, 19640, 19915, 22760, 27496, 31864, 34370, 39830, 68740, 79660, 137480, 159320, 279379, 558758, 1117516, 1396895, 1955653, 2235032, 2793790, 3911306, 5587580, 7822612, 9778265, 11175160, 15645224, 19556530, 39113060, 78226120]

約数ペア:

[(1, 78226120), (2, 39113060), (4, 19556530), (5, 15645224), (7, 11175160), (8, 9778265), (10, 7822612), (14, 5587580), (20, 3911306), (28, 2793790), (35, 2235032), (40, 1955653), (56, 1396895), (70, 1117516), (140, 558758), (280, 279379), (491, 159320), (569, 137480), (982, 79660), (1138, 68740), (1964, 39830), (2276, 34370), (2455, 31864), (2845, 27496), (3437, 22760), (3928, 19915), (3983, 19640), (4552, 17185), (4910, 15932), (5690, 13748), (6874, 11380), (7966, 9820)]