20123341808

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{479}}^1\times {\mathrm{25997}}^1$

素因数の和:26585

約数の個数: 40

約数和(自身を含む): 39458724480

約数和(自身を除く): 19335382672

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 479, 808, 958, 1616, 1916, 3832, 7664, 25997, 48379, 51994, 96758, 103988, 193516, 207976, 387032, 415952, 774064, 2625697, 5251394, 10502788, 12452563, 21005576, 24905126, 42011152, 49810252, 99620504, 199241008, 1257708863, 2515417726, 5030835452, 10061670904, 20123341808]

約数ペア:

[(1, 20123341808), (2, 10061670904), (4, 5030835452), (8, 2515417726), (16, 1257708863), (101, 199241008), (202, 99620504), (404, 49810252), (479, 42011152), (808, 24905126), (958, 21005576), (1616, 12452563), (1916, 10502788), (3832, 5251394), (7664, 2625697), (25997, 774064), (48379, 415952), (51994, 387032), (96758, 207976), (103988, 193516)]