81800352

素因数分解:

$2^5\times 3^2\times {\mathrm{431}}^1\times {\mathrm{659}}^1$

素因数の和:1106

約数の個数: 72

約数和(自身を含む): 233513280

約数和(自身を除く): 151712928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 431, 659, 862, 1293, 1318, 1724, 1977, 2586, 2636, 3448, 3879, 3954, 5172, 5272, 5931, 6896, 7758, 7908, 10344, 10544, 11862, 13792, 15516, 15816, 20688, 21088, 23724, 31032, 31632, 41376, 47448, 62064, 63264, 94896, 124128, 189792, 284029, 568058, 852087, 1136116, 1704174, 2272232, 2556261, 3408348, 4544464, 5112522, 6816696, 9088928, 10225044, 13633392, 20450088, 27266784, 40900176, 81800352]

約数ペア:

[(1, 81800352), (2, 40900176), (3, 27266784), (4, 20450088), (6, 13633392), (8, 10225044), (9, 9088928), (12, 6816696), (16, 5112522), (18, 4544464), (24, 3408348), (32, 2556261), (36, 2272232), (48, 1704174), (72, 1136116), (96, 852087), (144, 568058), (288, 284029), (431, 189792), (659, 124128), (862, 94896), (1293, 63264), (1318, 62064), (1724, 47448), (1977, 41376), (2586, 31632), (2636, 31032), (3448, 23724), (3879, 21088), (3954, 20688), (5172, 15816), (5272, 15516), (5931, 13792), (6896, 11862), (7758, 10544), (7908, 10344)]