25579960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 96

約数和(自身を含む): 69275520

約数和(自身を除く): 43695560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 70, 98, 124, 140, 155, 196, 217, 245, 248, 280, 310, 392, 421, 434, 490, 620, 842, 868, 980, 1085, 1240, 1519, 1684, 1736, 1960, 2105, 2170, 2947, 3038, 3368, 4210, 4340, 5894, 6076, 7595, 8420, 8680, 11788, 12152, 13051, 14735, 15190, 16840, 20629, 23576, 26102, 29470, 30380, 41258, 52204, 58940, 60760, 65255, 82516, 91357, 103145, 104408, 117880, 130510, 165032, 182714, 206290, 261020, 365428, 412580, 456785, 522040, 639499, 730856, 825160, 913570, 1278998, 1827140, 2557996, 3197495, 3654280, 5115992, 6394990, 12789980, 25579960]

約数ペア:

[(1, 25579960), (2, 12789980), (4, 6394990), (5, 5115992), (7, 3654280), (8, 3197495), (10, 2557996), (14, 1827140), (20, 1278998), (28, 913570), (31, 825160), (35, 730856), (40, 639499), (49, 522040), (56, 456785), (62, 412580), (70, 365428), (98, 261020), (124, 206290), (140, 182714), (155, 165032), (196, 130510), (217, 117880), (245, 104408), (248, 103145), (280, 91357), (310, 82516), (392, 65255), (421, 60760), (434, 58940), (490, 52204), (620, 41258), (842, 30380), (868, 29470), (980, 26102), (1085, 23576), (1240, 20629), (1519, 16840), (1684, 15190), (1736, 14735), (1960, 13051), (2105, 12152), (2170, 11788), (2947, 8680), (3038, 8420), (3368, 7595), (4210, 6076), (4340, 5894)]