308975420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2\times {\mathrm{223}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 711639936

約数和(自身を除く): 402664516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 223, 260, 292, 365, 446, 730, 892, 949, 1115, 1460, 1898, 2230, 2899, 3796, 4460, 4745, 5329, 5798, 9490, 10658, 11596, 14495, 16279, 18980, 21316, 26645, 28990, 32558, 53290, 57980, 65116, 69277, 81395, 106580, 138554, 162790, 211627, 277108, 325580, 346385, 423254, 692770, 846508, 1058135, 1188367, 1385540, 2116270, 2376734, 4232540, 4753468, 5941835, 11883670, 15448771, 23767340, 30897542, 61795084, 77243855, 154487710, 308975420]

約数ペア:

[(1, 308975420), (2, 154487710), (4, 77243855), (5, 61795084), (10, 30897542), (13, 23767340), (20, 15448771), (26, 11883670), (52, 5941835), (65, 4753468), (73, 4232540), (130, 2376734), (146, 2116270), (223, 1385540), (260, 1188367), (292, 1058135), (365, 846508), (446, 692770), (730, 423254), (892, 346385), (949, 325580), (1115, 277108), (1460, 211627), (1898, 162790), (2230, 138554), (2899, 106580), (3796, 81395), (4460, 69277), (4745, 65116), (5329, 57980), (5798, 53290), (9490, 32558), (10658, 28990), (11596, 26645), (14495, 21316), (16279, 18980)]