217622990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{2111}}^1$

素因数の和:2205

約数の個数: 48

約数和(自身を含む): 431329536

約数和(自身を除く): 213706546

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 305, 338, 610, 793, 845, 1586, 1690, 2111, 3965, 4222, 7930, 10309, 10555, 20618, 21110, 27443, 51545, 54886, 103090, 128771, 137215, 257542, 274430, 356759, 643855, 713518, 1287710, 1674023, 1783795, 3348046, 3567590, 8370115, 16740230, 21762299, 43524598, 108811495, 217622990]

約数ペア:

[(1, 217622990), (2, 108811495), (5, 43524598), (10, 21762299), (13, 16740230), (26, 8370115), (61, 3567590), (65, 3348046), (122, 1783795), (130, 1674023), (169, 1287710), (305, 713518), (338, 643855), (610, 356759), (793, 274430), (845, 257542), (1586, 137215), (1690, 128771), (2111, 103090), (3965, 54886), (4222, 51545), (7930, 27443), (10309, 21110), (10555, 20618)]