20915421480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6455377}}^1$

素因数の和:6455400

約数の個数: 80

約数和(自身を含む): 70299066420

約数和(自身を除く): 49383644940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6455377, 12910754, 19366131, 25821508, 32276885, 38732262, 51643016, 58098393, 64553770, 77464524, 96830655, 116196786, 129107540, 154929048, 174295179, 193661310, 232393572, 258215080, 290491965, 348590358, 387322620, 464787144, 522885537, 580983930, 697180716, 774645240, 871475895, 1045771074, 1161967860, 1394361432, 1742951790, 2091542148, 2323935720, 2614427685, 3485903580, 4183084296, 5228855370, 6971807160, 10457710740, 20915421480]

約数ペア:

[(1, 20915421480), (2, 10457710740), (3, 6971807160), (4, 5228855370), (5, 4183084296), (6, 3485903580), (8, 2614427685), (9, 2323935720), (10, 2091542148), (12, 1742951790), (15, 1394361432), (18, 1161967860), (20, 1045771074), (24, 871475895), (27, 774645240), (30, 697180716), (36, 580983930), (40, 522885537), (45, 464787144), (54, 387322620), (60, 348590358), (72, 290491965), (81, 258215080), (90, 232393572), (108, 193661310), (120, 174295179), (135, 154929048), (162, 129107540), (180, 116196786), (216, 96830655), (270, 77464524), (324, 64553770), (360, 58098393), (405, 51643016), (540, 38732262), (648, 32276885), (810, 25821508), (1080, 19366131), (1620, 12910754), (3240, 6455377)]