81810648

素因数分解:

$2^3\times 3^4\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 230693760

約数和(自身を除く): 148883112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 191, 216, 324, 382, 573, 648, 661, 764, 1146, 1322, 1528, 1719, 1983, 2292, 2644, 3438, 3966, 4584, 5157, 5288, 5949, 6876, 7932, 10314, 11898, 13752, 15471, 15864, 17847, 20628, 23796, 30942, 35694, 41256, 47592, 53541, 61884, 71388, 107082, 123768, 126251, 142776, 214164, 252502, 378753, 428328, 505004, 757506, 1010008, 1136259, 1515012, 2272518, 3030024, 3408777, 4545036, 6817554, 9090072, 10226331, 13635108, 20452662, 27270216, 40905324, 81810648]

約数ペア:

[(1, 81810648), (2, 40905324), (3, 27270216), (4, 20452662), (6, 13635108), (8, 10226331), (9, 9090072), (12, 6817554), (18, 4545036), (24, 3408777), (27, 3030024), (36, 2272518), (54, 1515012), (72, 1136259), (81, 1010008), (108, 757506), (162, 505004), (191, 428328), (216, 378753), (324, 252502), (382, 214164), (573, 142776), (648, 126251), (661, 123768), (764, 107082), (1146, 71388), (1322, 61884), (1528, 53541), (1719, 47592), (1983, 41256), (2292, 35694), (2644, 30942), (3438, 23796), (3966, 20628), (4584, 17847), (5157, 15864), (5288, 15471), (5949, 13752), (6876, 11898), (7932, 10314)]