290127760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8999}}^1$

素因数の和:9056

約数の個数: 80

約数和(自身を含む): 749952000

約数和(自身を除く): 459824240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 8999, 16120, 17998, 32240, 35996, 44995, 71992, 89990, 116987, 143984, 179980, 233974, 278969, 359960, 467948, 557938, 584935, 719920, 935896, 1115876, 1169870, 1394845, 1871792, 2231752, 2339740, 2789690, 3626597, 4463504, 4679480, 5579380, 7253194, 9358960, 11158760, 14506388, 18132985, 22317520, 29012776, 36265970, 58025552, 72531940, 145063880, 290127760]

約数ペア:

[(1, 290127760), (2, 145063880), (4, 72531940), (5, 58025552), (8, 36265970), (10, 29012776), (13, 22317520), (16, 18132985), (20, 14506388), (26, 11158760), (31, 9358960), (40, 7253194), (52, 5579380), (62, 4679480), (65, 4463504), (80, 3626597), (104, 2789690), (124, 2339740), (130, 2231752), (155, 1871792), (208, 1394845), (248, 1169870), (260, 1115876), (310, 935896), (403, 719920), (496, 584935), (520, 557938), (620, 467948), (806, 359960), (1040, 278969), (1240, 233974), (1612, 179980), (2015, 143984), (2480, 116987), (3224, 89990), (4030, 71992), (6448, 44995), (8060, 35996), (8999, 32240), (16120, 17998)]