20483320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3581}}^1$

素因数の和:3616

約数の個数: 64

約数和(自身を含む): 54159840

約数和(自身を除く): 33676520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3581, 5720, 7162, 14324, 17905, 28648, 35810, 39391, 46553, 71620, 78782, 93106, 143240, 157564, 186212, 196955, 232765, 315128, 372424, 393910, 465530, 512083, 787820, 931060, 1024166, 1575640, 1862120, 2048332, 2560415, 4096664, 5120830, 10241660, 20483320]

約数ペア:

[(1, 20483320), (2, 10241660), (4, 5120830), (5, 4096664), (8, 2560415), (10, 2048332), (11, 1862120), (13, 1575640), (20, 1024166), (22, 931060), (26, 787820), (40, 512083), (44, 465530), (52, 393910), (55, 372424), (65, 315128), (88, 232765), (104, 196955), (110, 186212), (130, 157564), (143, 143240), (220, 93106), (260, 78782), (286, 71620), (440, 46553), (520, 39391), (572, 35810), (715, 28648), (1144, 17905), (1430, 14324), (2860, 7162), (3581, 5720)]