81845484

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1277}}^1$

素因数の和:1407

約数の個数: 72

約数和(自身を含む): 224365680

約数和(自身を除く): 142520196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 109, 147, 196, 218, 294, 327, 436, 588, 654, 763, 1277, 1308, 1526, 2289, 2554, 3052, 3831, 4578, 5108, 5341, 7662, 8939, 9156, 10682, 15324, 16023, 17878, 21364, 26817, 32046, 35756, 53634, 62573, 64092, 107268, 125146, 139193, 187719, 250292, 278386, 375438, 417579, 556772, 750876, 835158, 974351, 1670316, 1948702, 2923053, 3897404, 5846106, 6820457, 11692212, 13640914, 20461371, 27281828, 40922742, 81845484]

約数ペア:

[(1, 81845484), (2, 40922742), (3, 27281828), (4, 20461371), (6, 13640914), (7, 11692212), (12, 6820457), (14, 5846106), (21, 3897404), (28, 2923053), (42, 1948702), (49, 1670316), (84, 974351), (98, 835158), (109, 750876), (147, 556772), (196, 417579), (218, 375438), (294, 278386), (327, 250292), (436, 187719), (588, 139193), (654, 125146), (763, 107268), (1277, 64092), (1308, 62573), (1526, 53634), (2289, 35756), (2554, 32046), (3052, 26817), (3831, 21364), (4578, 17878), (5108, 16023), (5341, 15324), (7662, 10682), (8939, 9156)]