309880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 714240

約数和(自身を除く): 404360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 127, 244, 254, 305, 488, 508, 610, 635, 1016, 1220, 1270, 2440, 2540, 5080, 7747, 15494, 30988, 38735, 61976, 77470, 154940, 309880]

約数ペア:

[(1, 309880), (2, 154940), (4, 77470), (5, 61976), (8, 38735), (10, 30988), (20, 15494), (40, 7747), (61, 5080), (122, 2540), (127, 2440), (244, 1270), (254, 1220), (305, 1016), (488, 635), (508, 610)]