87890220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44389}}^1$

素因数の和:44415

約数の個数: 72

約数和(自身を含む): 290843280

約数和(自身を除く): 202953060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 44389, 88778, 133167, 177556, 221945, 266334, 399501, 443890, 488279, 532668, 665835, 799002, 887780, 976558, 1331670, 1464837, 1598004, 1953116, 1997505, 2441395, 2663340, 2929674, 3995010, 4394511, 4882790, 5859348, 7324185, 7990020, 8789022, 9765580, 14648370, 17578044, 21972555, 29296740, 43945110, 87890220]

約数ペア:

[(1, 87890220), (2, 43945110), (3, 29296740), (4, 21972555), (5, 17578044), (6, 14648370), (9, 9765580), (10, 8789022), (11, 7990020), (12, 7324185), (15, 5859348), (18, 4882790), (20, 4394511), (22, 3995010), (30, 2929674), (33, 2663340), (36, 2441395), (44, 1997505), (45, 1953116), (55, 1598004), (60, 1464837), (66, 1331670), (90, 976558), (99, 887780), (110, 799002), (132, 665835), (165, 532668), (180, 488279), (198, 443890), (220, 399501), (330, 266334), (396, 221945), (495, 177556), (660, 133167), (990, 88778), (1980, 44389)]