131971216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:360

約数の個数: 80

約数和(自身を含む): 288537088

約数和(自身を除く): 156565872

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 97, 104, 124, 194, 208, 211, 248, 388, 403, 422, 496, 776, 806, 844, 1261, 1552, 1612, 1688, 2522, 2743, 3007, 3224, 3376, 5044, 5486, 6014, 6448, 6541, 10088, 10972, 12028, 13082, 20176, 20467, 21944, 24056, 26164, 39091, 40934, 43888, 48112, 52328, 78182, 81868, 85033, 104656, 156364, 163736, 170066, 266071, 312728, 327472, 340132, 532142, 625456, 634477, 680264, 1064284, 1268954, 1360528, 2128568, 2537908, 4257136, 5075816, 8248201, 10151632, 16496402, 32992804, 65985608, 131971216]

約数ペア:

[(1, 131971216), (2, 65985608), (4, 32992804), (8, 16496402), (13, 10151632), (16, 8248201), (26, 5075816), (31, 4257136), (52, 2537908), (62, 2128568), (97, 1360528), (104, 1268954), (124, 1064284), (194, 680264), (208, 634477), (211, 625456), (248, 532142), (388, 340132), (403, 327472), (422, 312728), (496, 266071), (776, 170066), (806, 163736), (844, 156364), (1261, 104656), (1552, 85033), (1612, 81868), (1688, 78182), (2522, 52328), (2743, 48112), (3007, 43888), (3224, 40934), (3376, 39091), (5044, 26164), (5486, 24056), (6014, 21944), (6448, 20467), (6541, 20176), (10088, 13082), (10972, 12028)]