259860848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1$

素因数の和:454

約数の個数: 80

約数和(自身を含む): 565297152

約数和(自身を除く): 305436304

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 191, 208, 211, 248, 382, 403, 422, 496, 764, 806, 844, 1528, 1612, 1688, 2483, 2743, 3056, 3224, 3376, 4966, 5486, 5921, 6448, 6541, 9932, 10972, 11842, 13082, 19864, 21944, 23684, 26164, 39728, 40301, 43888, 47368, 52328, 76973, 80602, 85033, 94736, 104656, 153946, 161204, 170066, 307892, 322408, 340132, 523913, 615784, 644816, 680264, 1047826, 1231568, 1249331, 1360528, 2095652, 2498662, 4191304, 4997324, 8382608, 9994648, 16241303, 19989296, 32482606, 64965212, 129930424, 259860848]

約数ペア:

[(1, 259860848), (2, 129930424), (4, 64965212), (8, 32482606), (13, 19989296), (16, 16241303), (26, 9994648), (31, 8382608), (52, 4997324), (62, 4191304), (104, 2498662), (124, 2095652), (191, 1360528), (208, 1249331), (211, 1231568), (248, 1047826), (382, 680264), (403, 644816), (422, 615784), (496, 523913), (764, 340132), (806, 322408), (844, 307892), (1528, 170066), (1612, 161204), (1688, 153946), (2483, 104656), (2743, 94736), (3056, 85033), (3224, 80602), (3376, 76973), (4966, 52328), (5486, 47368), (5921, 43888), (6448, 40301), (6541, 39728), (9932, 26164), (10972, 23684), (11842, 21944), (13082, 19864)]