406291340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31891}}^1$

素因数の和:31927

約数の個数: 72

約数和(自身を含む): 1068892272

約数和(自身を除く): 662600932

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 31891, 63782, 127564, 159455, 223237, 318910, 414583, 446474, 637820, 829166, 892948, 1116185, 1562659, 1658332, 2072915, 2232370, 2902081, 3125318, 4145830, 4464740, 5804162, 6250636, 7813295, 8291660, 11608324, 14510405, 15626590, 20314567, 29020810, 31253180, 40629134, 58041620, 81258268, 101572835, 203145670, 406291340]

約数ペア:

[(1, 406291340), (2, 203145670), (4, 101572835), (5, 81258268), (7, 58041620), (10, 40629134), (13, 31253180), (14, 29020810), (20, 20314567), (26, 15626590), (28, 14510405), (35, 11608324), (49, 8291660), (52, 7813295), (65, 6250636), (70, 5804162), (91, 4464740), (98, 4145830), (130, 3125318), (140, 2902081), (182, 2232370), (196, 2072915), (245, 1658332), (260, 1562659), (364, 1116185), (455, 892948), (490, 829166), (637, 637820), (910, 446474), (980, 414583), (1274, 318910), (1820, 223237), (2548, 159455), (3185, 127564), (6370, 63782), (12740, 31891)]