207983140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 446342400

約数和(自身を除く): 238359260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 284, 298, 355, 596, 710, 745, 983, 1420, 1490, 1966, 2980, 3932, 4915, 9830, 10579, 19660, 21158, 42316, 52895, 69793, 105790, 139586, 146467, 211580, 279172, 292934, 348965, 585868, 697930, 732335, 1395860, 1464670, 2929340, 10399157, 20798314, 41596628, 51995785, 103991570, 207983140]

約数ペア:

[(1, 207983140), (2, 103991570), (4, 51995785), (5, 41596628), (10, 20798314), (20, 10399157), (71, 2929340), (142, 1464670), (149, 1395860), (284, 732335), (298, 697930), (355, 585868), (596, 348965), (710, 292934), (745, 279172), (983, 211580), (1420, 146467), (1490, 139586), (1966, 105790), (2980, 69793), (3932, 52895), (4915, 42316), (9830, 21158), (10579, 19660)]