388404870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{264221}}^1$

素因数の和:264245

約数の個数: 48

約数和(自身を含む): 1084367088

約数和(自身を除く): 695962218

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 264221, 528442, 792663, 1321105, 1585326, 1849547, 2642210, 3699094, 3963315, 5548641, 7926630, 9247735, 11097282, 12946829, 18495470, 25893658, 27743205, 38840487, 55486410, 64734145, 77680974, 129468290, 194202435, 388404870]

約数ペア:

[(1, 388404870), (2, 194202435), (3, 129468290), (5, 77680974), (6, 64734145), (7, 55486410), (10, 38840487), (14, 27743205), (15, 25893658), (21, 18495470), (30, 12946829), (35, 11097282), (42, 9247735), (49, 7926630), (70, 5548641), (98, 3963315), (105, 3699094), (147, 2642210), (210, 1849547), (245, 1585326), (294, 1321105), (490, 792663), (735, 528442), (1470, 264221)]