81089460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4133}}^1$

素因数の和:4257

約数の個数: 72

約数和(自身を含む): 248288040

約数和(自身を除く): 167198580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4133, 4905, 6540, 8266, 9810, 12399, 16532, 19620, 20665, 24798, 37197, 41330, 49596, 61995, 74394, 82660, 123990, 148788, 185985, 247980, 371970, 450497, 743940, 900994, 1351491, 1801988, 2252485, 2702982, 4054473, 4504970, 5405964, 6757455, 8108946, 9009940, 13514910, 16217892, 20272365, 27029820, 40544730, 81089460]

約数ペア:

[(1, 81089460), (2, 40544730), (3, 27029820), (4, 20272365), (5, 16217892), (6, 13514910), (9, 9009940), (10, 8108946), (12, 6757455), (15, 5405964), (18, 4504970), (20, 4054473), (30, 2702982), (36, 2252485), (45, 1801988), (60, 1351491), (90, 900994), (109, 743940), (180, 450497), (218, 371970), (327, 247980), (436, 185985), (545, 148788), (654, 123990), (981, 82660), (1090, 74394), (1308, 61995), (1635, 49596), (1962, 41330), (2180, 37197), (3270, 24798), (3924, 20665), (4133, 19620), (4905, 16532), (6540, 12399), (8266, 9810)]