38438140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 94832640

約数和(自身を除く): 56394500

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 251, 260, 310, 380, 403, 494, 502, 589, 620, 806, 988, 1004, 1178, 1235, 1255, 1612, 2015, 2356, 2470, 2510, 2945, 3263, 4030, 4769, 4940, 5020, 5890, 6526, 7657, 7781, 8060, 9538, 11780, 13052, 15314, 15562, 16315, 19076, 23845, 30628, 31124, 32630, 38285, 38905, 47690, 61997, 65260, 76570, 77810, 95380, 101153, 123994, 147839, 153140, 155620, 202306, 247988, 295678, 309985, 404612, 505765, 591356, 619970, 739195, 1011530, 1239940, 1478390, 1921907, 2023060, 2956780, 3843814, 7687628, 9609535, 19219070, 38438140]

約数ペア:

[(1, 38438140), (2, 19219070), (4, 9609535), (5, 7687628), (10, 3843814), (13, 2956780), (19, 2023060), (20, 1921907), (26, 1478390), (31, 1239940), (38, 1011530), (52, 739195), (62, 619970), (65, 591356), (76, 505765), (95, 404612), (124, 309985), (130, 295678), (155, 247988), (190, 202306), (247, 155620), (251, 153140), (260, 147839), (310, 123994), (380, 101153), (403, 95380), (494, 77810), (502, 76570), (589, 65260), (620, 61997), (806, 47690), (988, 38905), (1004, 38285), (1178, 32630), (1235, 31124), (1255, 30628), (1612, 23845), (2015, 19076), (2356, 16315), (2470, 15562), (2510, 15314), (2945, 13052), (3263, 11780), (4030, 9538), (4769, 8060), (4940, 7781), (5020, 7657), (5890, 6526)]