397495878

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1\times {\mathrm{2557}}^1$

素因数の和:4568

約数の個数: 32

約数和(自身を含む): 856909536

約数和(自身を除く): 459413658

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1993, 2557, 3986, 5114, 5979, 7671, 11958, 15342, 25909, 33241, 51818, 66482, 77727, 99723, 155454, 199446, 5096101, 10192202, 15288303, 30576606, 66249313, 132498626, 198747939, 397495878]

約数ペア:

[(1, 397495878), (2, 198747939), (3, 132498626), (6, 66249313), (13, 30576606), (26, 15288303), (39, 10192202), (78, 5096101), (1993, 199446), (2557, 155454), (3986, 99723), (5114, 77727), (5979, 66482), (7671, 51818), (11958, 33241), (15342, 25909)]