638994420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3011}}^1$

素因数の和:3163

約数の個数: 120

約数和(自身を含む): 2020521888

約数和(自身を除く): 1381527468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 131, 135, 162, 180, 262, 270, 324, 393, 405, 524, 540, 655, 786, 810, 1179, 1310, 1572, 1620, 1965, 2358, 2620, 3011, 3537, 3930, 4716, 5895, 6022, 7074, 7860, 9033, 10611, 11790, 12044, 14148, 15055, 17685, 18066, 21222, 23580, 27099, 30110, 35370, 36132, 42444, 45165, 53055, 54198, 60220, 70740, 81297, 90330, 106110, 108396, 135495, 162594, 180660, 212220, 243891, 270990, 325188, 394441, 406485, 487782, 541980, 788882, 812970, 975564, 1183323, 1219455, 1577764, 1625940, 1972205, 2366646, 2438910, 3549969, 3944410, 4733292, 4877820, 5916615, 7099938, 7888820, 10649907, 11833230, 14199876, 17749845, 21299814, 23666460, 31949721, 35499690, 42599628, 53249535, 63899442, 70999380, 106499070, 127798884, 159748605, 212998140, 319497210, 638994420]

約数ペア:

[(1, 638994420), (2, 319497210), (3, 212998140), (4, 159748605), (5, 127798884), (6, 106499070), (9, 70999380), (10, 63899442), (12, 53249535), (15, 42599628), (18, 35499690), (20, 31949721), (27, 23666460), (30, 21299814), (36, 17749845), (45, 14199876), (54, 11833230), (60, 10649907), (81, 7888820), (90, 7099938), (108, 5916615), (131, 4877820), (135, 4733292), (162, 3944410), (180, 3549969), (262, 2438910), (270, 2366646), (324, 1972205), (393, 1625940), (405, 1577764), (524, 1219455), (540, 1183323), (655, 975564), (786, 812970), (810, 788882), (1179, 541980), (1310, 487782), (1572, 406485), (1620, 394441), (1965, 325188), (2358, 270990), (2620, 243891), (3011, 212220), (3537, 180660), (3930, 162594), (4716, 135495), (5895, 108396), (6022, 106110), (7074, 90330), (7860, 81297), (9033, 70740), (10611, 60220), (11790, 54198), (12044, 53055), (14148, 45165), (15055, 42444), (17685, 36132), (18066, 35370), (21222, 30110), (23580, 27099)]