68944640

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 168041328

約数和(自身を除く): 99096688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 883, 976, 1220, 1280, 1766, 1952, 2440, 3532, 3904, 4415, 4880, 7064, 7808, 8830, 9760, 14128, 15616, 17660, 19520, 28256, 35320, 39040, 53863, 56512, 70640, 78080, 107726, 113024, 141280, 215452, 226048, 269315, 282560, 430904, 538630, 565120, 861808, 1077260, 1130240, 1723616, 2154520, 3447232, 4309040, 6894464, 8618080, 13788928, 17236160, 34472320, 68944640]

約数ペア:

[(1, 68944640), (2, 34472320), (4, 17236160), (5, 13788928), (8, 8618080), (10, 6894464), (16, 4309040), (20, 3447232), (32, 2154520), (40, 1723616), (61, 1130240), (64, 1077260), (80, 861808), (122, 565120), (128, 538630), (160, 430904), (244, 282560), (256, 269315), (305, 226048), (320, 215452), (488, 141280), (610, 113024), (640, 107726), (883, 78080), (976, 70640), (1220, 56512), (1280, 53863), (1766, 39040), (1952, 35320), (2440, 28256), (3532, 19520), (3904, 17660), (4415, 15616), (4880, 14128), (7064, 9760), (7808, 8830)]