31478020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7253}}^1$

素因数の和:7300

約数の個数: 48

約数和(自身を含む): 77995008

約数和(自身を除く): 46516988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 7253, 14506, 29012, 36265, 50771, 72530, 101542, 145060, 203084, 224843, 253855, 449686, 507710, 899372, 1015420, 1124215, 1573901, 2248430, 3147802, 4496860, 6295604, 7869505, 15739010, 31478020]

約数ペア:

[(1, 31478020), (2, 15739010), (4, 7869505), (5, 6295604), (7, 4496860), (10, 3147802), (14, 2248430), (20, 1573901), (28, 1124215), (31, 1015420), (35, 899372), (62, 507710), (70, 449686), (124, 253855), (140, 224843), (155, 203084), (217, 145060), (310, 101542), (434, 72530), (620, 50771), (868, 36265), (1085, 29012), (2170, 14506), (4340, 7253)]