81717735

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 151704576

約数和(自身を除く): 69986841

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 61, 69, 115, 165, 183, 253, 305, 345, 353, 671, 759, 915, 1059, 1265, 1403, 1765, 2013, 3355, 3795, 3883, 4209, 5295, 7015, 8119, 10065, 11649, 15433, 19415, 21045, 21533, 24357, 40595, 46299, 58245, 64599, 77165, 89309, 107665, 121785, 231495, 236863, 267927, 322995, 446545, 495259, 710589, 1184315, 1339635, 1485777, 2476295, 3552945, 5447849, 7428885, 16343547, 27239245, 81717735]

約数ペア:

[(1, 81717735), (3, 27239245), (5, 16343547), (11, 7428885), (15, 5447849), (23, 3552945), (33, 2476295), (55, 1485777), (61, 1339635), (69, 1184315), (115, 710589), (165, 495259), (183, 446545), (253, 322995), (305, 267927), (345, 236863), (353, 231495), (671, 121785), (759, 107665), (915, 89309), (1059, 77165), (1265, 64599), (1403, 58245), (1765, 46299), (2013, 40595), (3355, 24357), (3795, 21533), (3883, 21045), (4209, 19415), (5295, 15433), (7015, 11649), (8119, 10065)]