81180990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1974

約数の個数: 96

約数和(自身を含む): 235737216

約数和(自身を除く): 154556226

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 43, 45, 55, 66, 86, 90, 99, 110, 129, 165, 198, 215, 258, 330, 387, 430, 473, 495, 645, 774, 946, 990, 1290, 1419, 1907, 1935, 2365, 2838, 3814, 3870, 4257, 4730, 5721, 7095, 8514, 9535, 11442, 14190, 17163, 19070, 20977, 21285, 28605, 34326, 41954, 42570, 57210, 62931, 82001, 85815, 104885, 125862, 164002, 171630, 188793, 209770, 246003, 314655, 377586, 410005, 492006, 629310, 738009, 820010, 902011, 943965, 1230015, 1476018, 1804022, 1887930, 2460030, 2706033, 3690045, 4510055, 5412066, 7380090, 8118099, 9020110, 13530165, 16236198, 27060330, 40590495, 81180990]

約数ペア:

[(1, 81180990), (2, 40590495), (3, 27060330), (5, 16236198), (6, 13530165), (9, 9020110), (10, 8118099), (11, 7380090), (15, 5412066), (18, 4510055), (22, 3690045), (30, 2706033), (33, 2460030), (43, 1887930), (45, 1804022), (55, 1476018), (66, 1230015), (86, 943965), (90, 902011), (99, 820010), (110, 738009), (129, 629310), (165, 492006), (198, 410005), (215, 377586), (258, 314655), (330, 246003), (387, 209770), (430, 188793), (473, 171630), (495, 164002), (645, 125862), (774, 104885), (946, 85815), (990, 82001), (1290, 62931), (1419, 57210), (1907, 42570), (1935, 41954), (2365, 34326), (2838, 28605), (3814, 21285), (3870, 20977), (4257, 19070), (4730, 17163), (5721, 14190), (7095, 11442), (8514, 9535)]