81327860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1\times {\mathrm{359}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 175633920

約数和(自身を除く): 94306060

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 241, 359, 470, 482, 718, 940, 964, 1205, 1436, 1795, 2410, 3590, 4820, 7180, 11327, 16873, 22654, 33746, 45308, 56635, 67492, 84365, 86519, 113270, 168730, 173038, 226540, 337460, 346076, 432595, 865190, 1730380, 4066393, 8132786, 16265572, 20331965, 40663930, 81327860]

約数ペア:

[(1, 81327860), (2, 40663930), (4, 20331965), (5, 16265572), (10, 8132786), (20, 4066393), (47, 1730380), (94, 865190), (188, 432595), (235, 346076), (241, 337460), (359, 226540), (470, 173038), (482, 168730), (718, 113270), (940, 86519), (964, 84365), (1205, 67492), (1436, 56635), (1795, 45308), (2410, 33746), (3590, 22654), (4820, 16873), (7180, 11327)]