81991416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{829}}^1$

素因数の和:1168

約数の個数: 64

約数和(自身を含む): 221709600

約数和(自身を除く): 139718184

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 317, 634, 829, 951, 1268, 1658, 1902, 2487, 2536, 3316, 3804, 4121, 4974, 6632, 7608, 8242, 9948, 10777, 12363, 16484, 19896, 21554, 24726, 32331, 32968, 43108, 49452, 64662, 86216, 98904, 129324, 258648, 262793, 525586, 788379, 1051172, 1576758, 2102344, 3153516, 3416309, 6307032, 6832618, 10248927, 13665236, 20497854, 27330472, 40995708, 81991416]

約数ペア:

[(1, 81991416), (2, 40995708), (3, 27330472), (4, 20497854), (6, 13665236), (8, 10248927), (12, 6832618), (13, 6307032), (24, 3416309), (26, 3153516), (39, 2102344), (52, 1576758), (78, 1051172), (104, 788379), (156, 525586), (312, 262793), (317, 258648), (634, 129324), (829, 98904), (951, 86216), (1268, 64662), (1658, 49452), (1902, 43108), (2487, 32968), (2536, 32331), (3316, 24726), (3804, 21554), (4121, 19896), (4974, 16484), (6632, 12363), (7608, 10777), (8242, 9948)]