127777162420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1\times {\mathrm{128831}}^1$

素因数の和:129432

約数の個数: 48

約数和(自身を含む): 271542813696

約数和(自身を除く): 143765651276

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 491, 505, 982, 1010, 1964, 2020, 2455, 4910, 9820, 49591, 99182, 128831, 198364, 247955, 257662, 495910, 515324, 644155, 991820, 1288310, 2576620, 13011931, 26023862, 52047724, 63256021, 65059655, 126512042, 130119310, 253024084, 260238620, 316280105, 632560210, 1265120420, 6388858121, 12777716242, 25555432484, 31944290605, 63888581210, 127777162420]

約数ペア:

[(1, 127777162420), (2, 63888581210), (4, 31944290605), (5, 25555432484), (10, 12777716242), (20, 6388858121), (101, 1265120420), (202, 632560210), (404, 316280105), (491, 260238620), (505, 253024084), (982, 130119310), (1010, 126512042), (1964, 65059655), (2020, 63256021), (2455, 52047724), (4910, 26023862), (9820, 13011931), (49591, 2576620), (99182, 1288310), (128831, 991820), (198364, 644155), (247955, 515324), (257662, 495910)]