1002538480

素因数分解:

$2^4\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{6269}}^1$

素因数の和:8281

約数の個数: 40

約数和(自身を含む): 2332440000

約数和(自身を除く): 1329901520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1999, 3998, 6269, 7996, 9995, 12538, 15992, 19990, 25076, 31345, 31984, 39980, 50152, 62690, 79960, 100304, 125380, 159920, 250760, 501520, 12531731, 25063462, 50126924, 62658655, 100253848, 125317310, 200507696, 250634620, 501269240, 1002538480]

約数ペア:

[(1, 1002538480), (2, 501269240), (4, 250634620), (5, 200507696), (8, 125317310), (10, 100253848), (16, 62658655), (20, 50126924), (40, 25063462), (80, 12531731), (1999, 501520), (3998, 250760), (6269, 159920), (7996, 125380), (9995, 100304), (12538, 79960), (15992, 62690), (19990, 50152), (25076, 39980), (31345, 31984)]