978492040

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{242201}}^1$

素因数の和:242313

約数の個数: 32

約数和(自身を含む): 2223414360

約数和(自身を除く): 1244922320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 242201, 484402, 968804, 1211005, 1937608, 2422010, 4844020, 9688040, 24462301, 48924602, 97849204, 122311505, 195698408, 244623010, 489246020, 978492040]

約数ペア:

[(1, 978492040), (2, 489246020), (4, 244623010), (5, 195698408), (8, 122311505), (10, 97849204), (20, 48924602), (40, 24462301), (101, 9688040), (202, 4844020), (404, 2422010), (505, 1937608), (808, 1211005), (1010, 968804), (2020, 484402), (4040, 242201)]