31415745020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1472153}}^1$

素因数の和:1472270

約数の個数: 48

約数和(自身を含む): 72712630368

約数和(自身を除く): 41296885348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 4268, 5335, 10670, 21340, 1472153, 2944306, 5888612, 7360765, 14721530, 16193683, 29443060, 32387366, 64774732, 80968415, 142798841, 161936830, 285597682, 323873660, 571195364, 713994205, 1427988410, 1570787251, 2855976820, 3141574502, 6283149004, 7853936255, 15707872510, 31415745020]

約数ペア:

[(1, 31415745020), (2, 15707872510), (4, 7853936255), (5, 6283149004), (10, 3141574502), (11, 2855976820), (20, 1570787251), (22, 1427988410), (44, 713994205), (55, 571195364), (97, 323873660), (110, 285597682), (194, 161936830), (220, 142798841), (388, 80968415), (485, 64774732), (970, 32387366), (1067, 29443060), (1940, 16193683), (2134, 14721530), (4268, 7360765), (5335, 5888612), (10670, 2944306), (21340, 1472153)]