81120304

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3989}}^1$

素因数の和:4069

約数の個数: 40

約数和(自身を含む): 166239360

約数和(自身を除く): 85119056

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 164, 248, 328, 496, 656, 1271, 2542, 3989, 5084, 7978, 10168, 15956, 20336, 31912, 63824, 123659, 163549, 247318, 327098, 494636, 654196, 989272, 1308392, 1978544, 2616784, 5070019, 10140038, 20280076, 40560152, 81120304]

約数ペア:

[(1, 81120304), (2, 40560152), (4, 20280076), (8, 10140038), (16, 5070019), (31, 2616784), (41, 1978544), (62, 1308392), (82, 989272), (124, 654196), (164, 494636), (248, 327098), (328, 247318), (496, 163549), (656, 123659), (1271, 63824), (2542, 31912), (3989, 20336), (5084, 15956), (7978, 10168)]