31130680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2269}}^1$

素因数の和:2301

約数の個数: 64

約数和(自身を含む): 81720000

約数和(自身を除く): 50589320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2269, 2744, 3430, 4538, 6860, 9076, 11345, 13720, 15883, 18152, 22690, 31766, 45380, 63532, 79415, 90760, 111181, 127064, 158830, 222362, 317660, 444724, 555905, 635320, 778267, 889448, 1111810, 1556534, 2223620, 3113068, 3891335, 4447240, 6226136, 7782670, 15565340, 31130680]

約数ペア:

[(1, 31130680), (2, 15565340), (4, 7782670), (5, 6226136), (7, 4447240), (8, 3891335), (10, 3113068), (14, 2223620), (20, 1556534), (28, 1111810), (35, 889448), (40, 778267), (49, 635320), (56, 555905), (70, 444724), (98, 317660), (140, 222362), (196, 158830), (245, 127064), (280, 111181), (343, 90760), (392, 79415), (490, 63532), (686, 45380), (980, 31766), (1372, 22690), (1715, 18152), (1960, 15883), (2269, 13720), (2744, 11345), (3430, 9076), (4538, 6860)]