2479880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 6350400

約数和(自身を除く): 3870520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 251, 260, 380, 494, 502, 520, 760, 988, 1004, 1235, 1255, 1976, 2008, 2470, 2510, 3263, 4769, 4940, 5020, 6526, 9538, 9880, 10040, 13052, 16315, 19076, 23845, 26104, 32630, 38152, 47690, 61997, 65260, 95380, 123994, 130520, 190760, 247988, 309985, 495976, 619970, 1239940, 2479880]

約数ペア:

[(1, 2479880), (2, 1239940), (4, 619970), (5, 495976), (8, 309985), (10, 247988), (13, 190760), (19, 130520), (20, 123994), (26, 95380), (38, 65260), (40, 61997), (52, 47690), (65, 38152), (76, 32630), (95, 26104), (104, 23845), (130, 19076), (152, 16315), (190, 13052), (247, 10040), (251, 9880), (260, 9538), (380, 6526), (494, 5020), (502, 4940), (520, 4769), (760, 3263), (988, 2510), (1004, 2470), (1235, 2008), (1255, 1976)]