521127760

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{13267}}^1$

素因数の和:13771

約数の個数: 40

約数和(自身を含む): 1214181216

約数和(自身を除く): 693053456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 13267, 19640, 26534, 39280, 53068, 66335, 106136, 132670, 212272, 265340, 530680, 1061360, 6514097, 13028194, 26056388, 32570485, 52112776, 65140970, 104225552, 130281940, 260563880, 521127760]

約数ペア:

[(1, 521127760), (2, 260563880), (4, 130281940), (5, 104225552), (8, 65140970), (10, 52112776), (16, 32570485), (20, 26056388), (40, 13028194), (80, 6514097), (491, 1061360), (982, 530680), (1964, 265340), (2455, 212272), (3928, 132670), (4910, 106136), (7856, 66335), (9820, 53068), (13267, 39280), (19640, 26534)]