20687030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25761610

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 127, 130, 179, 182, 254, 358, 455, 635, 889, 895, 910, 1253, 1270, 1651, 1778, 1790, 2327, 2506, 3302, 4445, 4654, 6265, 8255, 8890, 11557, 11635, 12530, 16289, 16510, 22733, 23114, 23270, 32578, 45466, 57785, 81445, 113665, 115570, 159131, 162890, 227330, 295529, 318262, 591058, 795655, 1477645, 1591310, 2068703, 2955290, 4137406, 10343515, 20687030]

約数ペア:

[(1, 20687030), (2, 10343515), (5, 4137406), (7, 2955290), (10, 2068703), (13, 1591310), (14, 1477645), (26, 795655), (35, 591058), (65, 318262), (70, 295529), (91, 227330), (127, 162890), (130, 159131), (179, 115570), (182, 113665), (254, 81445), (358, 57785), (455, 45466), (635, 32578), (889, 23270), (895, 23114), (910, 22733), (1253, 16510), (1270, 16289), (1651, 12530), (1778, 11635), (1790, 11557), (2327, 8890), (2506, 8255), (3302, 6265), (4445, 4654)]