820512004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{10429}}^1$

素因数の和:10552

約数の個数: 48

約数和(自身を含む): 1655866800

約数和(自身を除く): 835354796

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 89, 178, 221, 356, 442, 884, 1157, 1513, 2314, 3026, 4628, 6052, 10429, 19669, 20858, 39338, 41716, 78676, 135577, 177293, 271154, 354586, 542308, 709172, 928181, 1856362, 2304809, 3712724, 4609618, 9219236, 12066353, 15779077, 24132706, 31558154, 48265412, 63116308, 205128001, 410256002, 820512004]

約数ペア:

[(1, 820512004), (2, 410256002), (4, 205128001), (13, 63116308), (17, 48265412), (26, 31558154), (34, 24132706), (52, 15779077), (68, 12066353), (89, 9219236), (178, 4609618), (221, 3712724), (356, 2304809), (442, 1856362), (884, 928181), (1157, 709172), (1513, 542308), (2314, 354586), (3026, 271154), (4628, 177293), (6052, 135577), (10429, 78676), (19669, 41716), (20858, 39338)]