7806680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{569}}^1$

素因数の和:601

約数の個数: 64

約数和(自身を含む): 20520000

約数和(自身を除く): 12713320

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, 569, 686, 980, 1138, 1372, 1715, 1960, 2276, 2744, 2845, 3430, 3983, 4552, 5690, 6860, 7966, 11380, 13720, 15932, 19915, 22760, 27881, 31864, 39830, 55762, 79660, 111524, 139405, 159320, 195167, 223048, 278810, 390334, 557620, 780668, 975835, 1115240, 1561336, 1951670, 3903340, 7806680]

約数ペア:

[(1, 7806680), (2, 3903340), (4, 1951670), (5, 1561336), (7, 1115240), (8, 975835), (10, 780668), (14, 557620), (20, 390334), (28, 278810), (35, 223048), (40, 195167), (49, 159320), (56, 139405), (70, 111524), (98, 79660), (140, 55762), (196, 39830), (245, 31864), (280, 27881), (343, 22760), (392, 19915), (490, 15932), (569, 13720), (686, 11380), (980, 7966), (1138, 6860), (1372, 5690), (1715, 4552), (1960, 3983), (2276, 3430), (2744, 2845)]