156631220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{983}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 341203968

約数和(自身を除く): 184572748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 257, 310, 514, 620, 983, 1028, 1285, 1966, 2570, 3932, 4915, 5140, 7967, 9830, 15934, 19660, 30473, 31868, 39835, 60946, 79670, 121892, 152365, 159340, 252631, 304730, 505262, 609460, 1010524, 1263155, 2526310, 5052620, 7831561, 15663122, 31326244, 39157805, 78315610, 156631220]

約数ペア:

[(1, 156631220), (2, 78315610), (4, 39157805), (5, 31326244), (10, 15663122), (20, 7831561), (31, 5052620), (62, 2526310), (124, 1263155), (155, 1010524), (257, 609460), (310, 505262), (514, 304730), (620, 252631), (983, 159340), (1028, 152365), (1285, 121892), (1966, 79670), (2570, 60946), (3932, 39835), (4915, 31868), (5140, 30473), (7967, 19660), (9830, 15934)]