655123856

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{2557}}^1$

素因数の和:2871

約数の個数: 40

約数和(自身を含む): 1294143360

約数和(自身を除く): 639019504

約数列:

[1, 2, 4, 8, 16, 67, 134, 239, 268, 478, 536, 956, 1072, 1912, 2557, 3824, 5114, 10228, 16013, 20456, 32026, 40912, 64052, 128104, 171319, 256208, 342638, 611123, 685276, 1222246, 1370552, 2444492, 2741104, 4888984, 9777968, 40945241, 81890482, 163780964, 327561928, 655123856]

約数ペア:

[(1, 655123856), (2, 327561928), (4, 163780964), (8, 81890482), (16, 40945241), (67, 9777968), (134, 4888984), (239, 2741104), (268, 2444492), (478, 1370552), (536, 1222246), (956, 685276), (1072, 611123), (1912, 342638), (2557, 256208), (3824, 171319), (5114, 128104), (10228, 64052), (16013, 40912), (20456, 32026)]