400378412

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{15359}}^1$

素因数の和:15403

約数の個数: 48

約数和(自身を含む): 860160000

約数和(自身を除く): 459781588

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 343, 532, 686, 931, 1372, 1862, 3724, 6517, 13034, 15359, 26068, 30718, 61436, 107513, 215026, 291821, 430052, 583642, 752591, 1167284, 1505182, 2042747, 3010364, 4085494, 5268137, 8170988, 10536274, 14299229, 21072548, 28598458, 57196916, 100094603, 200189206, 400378412]

約数ペア:

[(1, 400378412), (2, 200189206), (4, 100094603), (7, 57196916), (14, 28598458), (19, 21072548), (28, 14299229), (38, 10536274), (49, 8170988), (76, 5268137), (98, 4085494), (133, 3010364), (196, 2042747), (266, 1505182), (343, 1167284), (532, 752591), (686, 583642), (931, 430052), (1372, 291821), (1862, 215026), (3724, 107513), (6517, 61436), (13034, 30718), (15359, 26068)]