40781120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4111}}^1$

素因数の和:4159

約数の個数: 56

約数和(自身を含む): 100267008

約数和(自身を除く): 59485888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4111, 4960, 8222, 9920, 16444, 20555, 32888, 41110, 65776, 82220, 127441, 131552, 164440, 254882, 263104, 328880, 509764, 637205, 657760, 1019528, 1274410, 1315520, 2039056, 2548820, 4078112, 5097640, 8156224, 10195280, 20390560, 40781120]

約数ペア:

[(1, 40781120), (2, 20390560), (4, 10195280), (5, 8156224), (8, 5097640), (10, 4078112), (16, 2548820), (20, 2039056), (31, 1315520), (32, 1274410), (40, 1019528), (62, 657760), (64, 637205), (80, 509764), (124, 328880), (155, 263104), (160, 254882), (248, 164440), (310, 131552), (320, 127441), (496, 82220), (620, 65776), (992, 41110), (1240, 32888), (1984, 20555), (2480, 16444), (4111, 9920), (4960, 8222)]