261765072

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{25603}}^1$

素因数の和:25688

約数の個数: 60

約数和(自身を含む): 742925664

約数和(自身を除く): 481160592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2556, 3408, 5112, 10224, 25603, 51206, 76809, 102412, 153618, 204824, 230427, 307236, 409648, 460854, 614472, 921708, 1228944, 1817813, 1843416, 3635626, 3686832, 5453439, 7271252, 10906878, 14542504, 16360317, 21813756, 29085008, 32720634, 43627512, 65441268, 87255024, 130882536, 261765072]

約数ペア:

[(1, 261765072), (2, 130882536), (3, 87255024), (4, 65441268), (6, 43627512), (8, 32720634), (9, 29085008), (12, 21813756), (16, 16360317), (18, 14542504), (24, 10906878), (36, 7271252), (48, 5453439), (71, 3686832), (72, 3635626), (142, 1843416), (144, 1817813), (213, 1228944), (284, 921708), (426, 614472), (568, 460854), (639, 409648), (852, 307236), (1136, 230427), (1278, 204824), (1704, 153618), (2556, 102412), (3408, 76809), (5112, 51206), (10224, 25603)]