128983736

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{4691}}^1$

素因数の和:5195

約数の個数: 32

約数和(自身を含む): 277015680

約数和(自身を除く): 148031944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 982, 1964, 3437, 3928, 4691, 6874, 9382, 13748, 18764, 27496, 32837, 37528, 65674, 131348, 262696, 2303281, 4606562, 9213124, 16122967, 18426248, 32245934, 64491868, 128983736]

約数ペア:

[(1, 128983736), (2, 64491868), (4, 32245934), (7, 18426248), (8, 16122967), (14, 9213124), (28, 4606562), (56, 2303281), (491, 262696), (982, 131348), (1964, 65674), (3437, 37528), (3928, 32837), (4691, 27496), (6874, 18764), (9382, 13748)]