20295600860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1\times {\mathrm{36389}}^1$

素因数の和:36830

約数の個数: 48

約数和(自身を含む): 43283721600

約数和(自身を除く): 22988120740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 353, 395, 706, 790, 1412, 1580, 1765, 3530, 7060, 27887, 36389, 55774, 72778, 111548, 139435, 145556, 181945, 278870, 363890, 557740, 727780, 2874731, 5749462, 11498924, 12845317, 14373655, 25690634, 28747310, 51381268, 57494620, 64226585, 128453170, 256906340, 1014780043, 2029560086, 4059120172, 5073900215, 10147800430, 20295600860]

約数ペア:

[(1, 20295600860), (2, 10147800430), (4, 5073900215), (5, 4059120172), (10, 2029560086), (20, 1014780043), (79, 256906340), (158, 128453170), (316, 64226585), (353, 57494620), (395, 51381268), (706, 28747310), (790, 25690634), (1412, 14373655), (1580, 12845317), (1765, 11498924), (3530, 5749462), (7060, 2874731), (27887, 727780), (36389, 557740), (55774, 363890), (72778, 278870), (111548, 181945), (139435, 145556)]