256943388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{15991}}^1$

素因数の和:16114

約数の個数: 48

約数和(自身を含む): 651961856

約数和(自身を除く): 395018468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 103, 156, 206, 309, 412, 618, 1236, 1339, 2678, 4017, 5356, 8034, 15991, 16068, 31982, 47973, 63964, 95946, 191892, 207883, 415766, 623649, 831532, 1247298, 1647073, 2494596, 3294146, 4941219, 6588292, 9882438, 19764876, 21411949, 42823898, 64235847, 85647796, 128471694, 256943388]

約数ペア:

[(1, 256943388), (2, 128471694), (3, 85647796), (4, 64235847), (6, 42823898), (12, 21411949), (13, 19764876), (26, 9882438), (39, 6588292), (52, 4941219), (78, 3294146), (103, 2494596), (156, 1647073), (206, 1247298), (309, 831532), (412, 623649), (618, 415766), (1236, 207883), (1339, 191892), (2678, 95946), (4017, 63964), (5356, 47973), (8034, 31982), (15991, 16068)]