84991460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 191982336

約数和(自身を除く): 106990876

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 163, 290, 310, 326, 580, 620, 652, 815, 841, 899, 1630, 1682, 1798, 3260, 3364, 3596, 4205, 4495, 4727, 5053, 8410, 8990, 9454, 10106, 16820, 17980, 18908, 20212, 23635, 25265, 26071, 47270, 50530, 52142, 94540, 101060, 104284, 130355, 137083, 146537, 260710, 274166, 293074, 521420, 548332, 586148, 685415, 732685, 1370830, 1465370, 2741660, 2930740, 4249573, 8499146, 16998292, 21247865, 42495730, 84991460]

約数ペア:

[(1, 84991460), (2, 42495730), (4, 21247865), (5, 16998292), (10, 8499146), (20, 4249573), (29, 2930740), (31, 2741660), (58, 1465370), (62, 1370830), (116, 732685), (124, 685415), (145, 586148), (155, 548332), (163, 521420), (290, 293074), (310, 274166), (326, 260710), (580, 146537), (620, 137083), (652, 130355), (815, 104284), (841, 101060), (899, 94540), (1630, 52142), (1682, 50530), (1798, 47270), (3260, 26071), (3364, 25265), (3596, 23635), (4205, 20212), (4495, 18908), (4727, 17980), (5053, 16820), (8410, 10106), (8990, 9454)]