81978312

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13829}}^1$

素因数の和:13870

約数の個数: 64

約数和(自身を含む): 232344000

約数和(自身を除く): 150365688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 5928, 13829, 27658, 41487, 55316, 82974, 110632, 165948, 179777, 262751, 331896, 359554, 525502, 539331, 719108, 788253, 1051004, 1078662, 1438216, 1576506, 2102008, 2157324, 3153012, 3415763, 4314648, 6306024, 6831526, 10247289, 13663052, 20494578, 27326104, 40989156, 81978312]

約数ペア:

[(1, 81978312), (2, 40989156), (3, 27326104), (4, 20494578), (6, 13663052), (8, 10247289), (12, 6831526), (13, 6306024), (19, 4314648), (24, 3415763), (26, 3153012), (38, 2157324), (39, 2102008), (52, 1576506), (57, 1438216), (76, 1078662), (78, 1051004), (104, 788253), (114, 719108), (152, 539331), (156, 525502), (228, 359554), (247, 331896), (312, 262751), (456, 179777), (494, 165948), (741, 110632), (988, 82974), (1482, 55316), (1976, 41487), (2964, 27658), (5928, 13829)]