261209620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{3527}}^1$

素因数の和:3589

約数の個数: 72

約数和(自身を含む): 655530624

約数和(自身を除く): 394321004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 529, 644, 805, 1058, 1610, 2116, 2645, 3220, 3527, 3703, 5290, 7054, 7406, 10580, 14108, 14812, 17635, 18515, 24689, 35270, 37030, 49378, 70540, 74060, 81121, 98756, 123445, 162242, 246890, 324484, 405605, 493780, 567847, 811210, 1135694, 1622420, 1865783, 2271388, 2839235, 3731566, 5678470, 7463132, 9328915, 11356940, 13060481, 18657830, 26120962, 37315660, 52241924, 65302405, 130604810, 261209620]

約数ペア:

[(1, 261209620), (2, 130604810), (4, 65302405), (5, 52241924), (7, 37315660), (10, 26120962), (14, 18657830), (20, 13060481), (23, 11356940), (28, 9328915), (35, 7463132), (46, 5678470), (70, 3731566), (92, 2839235), (115, 2271388), (140, 1865783), (161, 1622420), (230, 1135694), (322, 811210), (460, 567847), (529, 493780), (644, 405605), (805, 324484), (1058, 246890), (1610, 162242), (2116, 123445), (2645, 98756), (3220, 81121), (3527, 74060), (3703, 70540), (5290, 49378), (7054, 37030), (7406, 35270), (10580, 24689), (14108, 18515), (14812, 17635)]