20713320

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{2131}}^1$

素因数の和:2157

約数の個数: 96

約数和(自身を含む): 69844320

約数和(自身を除く): 49131000

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, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2131, 2430, 3240, 4262, 4860, 6393, 8524, 9720, 10655, 12786, 17048, 19179, 21310, 25572, 31965, 38358, 42620, 51144, 57537, 63930, 76716, 85240, 95895, 115074, 127860, 153432, 172611, 191790, 230148, 255720, 287685, 345222, 383580, 460296, 517833, 575370, 690444, 767160, 863055, 1035666, 1150740, 1380888, 1726110, 2071332, 2301480, 2589165, 3452220, 4142664, 5178330, 6904440, 10356660, 20713320]

約数ペア:

[(1, 20713320), (2, 10356660), (3, 6904440), (4, 5178330), (5, 4142664), (6, 3452220), (8, 2589165), (9, 2301480), (10, 2071332), (12, 1726110), (15, 1380888), (18, 1150740), (20, 1035666), (24, 863055), (27, 767160), (30, 690444), (36, 575370), (40, 517833), (45, 460296), (54, 383580), (60, 345222), (72, 287685), (81, 255720), (90, 230148), (108, 191790), (120, 172611), (135, 153432), (162, 127860), (180, 115074), (216, 95895), (243, 85240), (270, 76716), (324, 63930), (360, 57537), (405, 51144), (486, 42620), (540, 38358), (648, 31965), (810, 25572), (972, 21310), (1080, 19179), (1215, 17048), (1620, 12786), (1944, 10655), (2131, 9720), (2430, 8524), (3240, 6393), (4262, 4860)]