219312080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3457}}^1$

素因数の和:3544

約数の個数: 80

約数和(自身を含む): 558287184

約数和(自身を除く): 338975104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1040, 1220, 1586, 2440, 3172, 3457, 3965, 4880, 6344, 6914, 7930, 12688, 13828, 15860, 17285, 27656, 31720, 34570, 44941, 55312, 63440, 69140, 89882, 138280, 179764, 210877, 224705, 276560, 359528, 421754, 449410, 719056, 843508, 898820, 1054385, 1687016, 1797640, 2108770, 2741401, 3374032, 3595280, 4217540, 5482802, 8435080, 10965604, 13707005, 16870160, 21931208, 27414010, 43862416, 54828020, 109656040, 219312080]

約数ペア:

[(1, 219312080), (2, 109656040), (4, 54828020), (5, 43862416), (8, 27414010), (10, 21931208), (13, 16870160), (16, 13707005), (20, 10965604), (26, 8435080), (40, 5482802), (52, 4217540), (61, 3595280), (65, 3374032), (80, 2741401), (104, 2108770), (122, 1797640), (130, 1687016), (208, 1054385), (244, 898820), (260, 843508), (305, 719056), (488, 449410), (520, 421754), (610, 359528), (793, 276560), (976, 224705), (1040, 210877), (1220, 179764), (1586, 138280), (2440, 89882), (3172, 69140), (3457, 63440), (3965, 55312), (4880, 44941), (6344, 34570), (6914, 31720), (7930, 27656), (12688, 17285), (13828, 15860)]