66958480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13721}}^1$

素因数の和:13795

約数の個数: 40

約数和(自身を含む): 158242104

約数和(自身を除く): 91283624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13721, 27442, 54884, 68605, 109768, 137210, 219536, 274420, 548840, 836981, 1097680, 1673962, 3347924, 4184905, 6695848, 8369810, 13391696, 16739620, 33479240, 66958480]

約数ペア:

[(1, 66958480), (2, 33479240), (4, 16739620), (5, 13391696), (8, 8369810), (10, 6695848), (16, 4184905), (20, 3347924), (40, 1673962), (61, 1097680), (80, 836981), (122, 548840), (244, 274420), (305, 219536), (488, 137210), (610, 109768), (976, 68605), (1220, 54884), (2440, 27442), (4880, 13721)]