25562556

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 66909024

約数和(自身を除く): 41346468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 73, 137, 142, 146, 213, 219, 274, 284, 292, 411, 426, 438, 548, 639, 657, 822, 852, 876, 1233, 1278, 1314, 1644, 2466, 2556, 2628, 4932, 5183, 9727, 10001, 10366, 15549, 19454, 20002, 20732, 29181, 30003, 31098, 38908, 40004, 46647, 58362, 60006, 62196, 87543, 90009, 93294, 116724, 120012, 175086, 180018, 186588, 350172, 360036, 710071, 1420142, 2130213, 2840284, 4260426, 6390639, 8520852, 12781278, 25562556]

約数ペア:

[(1, 25562556), (2, 12781278), (3, 8520852), (4, 6390639), (6, 4260426), (9, 2840284), (12, 2130213), (18, 1420142), (36, 710071), (71, 360036), (73, 350172), (137, 186588), (142, 180018), (146, 175086), (213, 120012), (219, 116724), (274, 93294), (284, 90009), (292, 87543), (411, 62196), (426, 60006), (438, 58362), (548, 46647), (639, 40004), (657, 38908), (822, 31098), (852, 30003), (876, 29181), (1233, 20732), (1278, 20002), (1314, 19454), (1644, 15549), (2466, 10366), (2556, 10001), (2628, 9727), (4932, 5183)]