19157930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 19452502

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 121, 142, 223, 242, 355, 446, 605, 710, 781, 1115, 1210, 1562, 2230, 2453, 3905, 4906, 7810, 8591, 12265, 15833, 17182, 24530, 26983, 31666, 42955, 53966, 79165, 85910, 134915, 158330, 174163, 269830, 348326, 870815, 1741630, 1915793, 3831586, 9578965, 19157930]

約数ペア:

[(1, 19157930), (2, 9578965), (5, 3831586), (10, 1915793), (11, 1741630), (22, 870815), (55, 348326), (71, 269830), (110, 174163), (121, 158330), (142, 134915), (223, 85910), (242, 79165), (355, 53966), (446, 42955), (605, 31666), (710, 26983), (781, 24530), (1115, 17182), (1210, 15833), (1562, 12265), (2230, 8591), (2453, 7810), (3905, 4906)]