1239940

素因数分解:

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

素因数の和:292

約数の個数: 48

約数和(自身を含む): 2963520

約数和(自身を除く): 1723580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 251, 260, 380, 494, 502, 988, 1004, 1235, 1255, 2470, 2510, 3263, 4769, 4940, 5020, 6526, 9538, 13052, 16315, 19076, 23845, 32630, 47690, 61997, 65260, 95380, 123994, 247988, 309985, 619970, 1239940]

約数ペア:

[(1, 1239940), (2, 619970), (4, 309985), (5, 247988), (10, 123994), (13, 95380), (19, 65260), (20, 61997), (26, 47690), (38, 32630), (52, 23845), (65, 19076), (76, 16315), (95, 13052), (130, 9538), (190, 6526), (247, 5020), (251, 4940), (260, 4769), (380, 3263), (494, 2510), (502, 2470), (988, 1255), (1004, 1235)]