81888390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2339}}^1$

素因数の和:2741

約数の個数: 48

約数和(自身を含む): 213548400

約数和(自身を除く): 131660010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 389, 778, 1167, 1945, 2334, 2339, 3501, 3890, 4678, 5835, 7002, 7017, 11670, 11695, 14034, 17505, 21051, 23390, 35010, 35085, 42102, 70170, 105255, 210510, 909871, 1819742, 2729613, 4549355, 5459226, 8188839, 9098710, 13648065, 16377678, 27296130, 40944195, 81888390]

約数ペア:

[(1, 81888390), (2, 40944195), (3, 27296130), (5, 16377678), (6, 13648065), (9, 9098710), (10, 8188839), (15, 5459226), (18, 4549355), (30, 2729613), (45, 1819742), (90, 909871), (389, 210510), (778, 105255), (1167, 70170), (1945, 42102), (2334, 35085), (2339, 35010), (3501, 23390), (3890, 21051), (4678, 17505), (5835, 14034), (7002, 11695), (7017, 11670)]