319844080

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{5639}}^1$

素因数の和:6361

約数の個数: 40

約数和(自身を含む): 744818400

約数和(自身を除く): 424974320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 1418, 2836, 3545, 5639, 5672, 7090, 11278, 11344, 14180, 22556, 28195, 28360, 45112, 56390, 56720, 90224, 112780, 225560, 451120, 3998051, 7996102, 15992204, 19990255, 31984408, 39980510, 63968816, 79961020, 159922040, 319844080]

約数ペア:

[(1, 319844080), (2, 159922040), (4, 79961020), (5, 63968816), (8, 39980510), (10, 31984408), (16, 19990255), (20, 15992204), (40, 7996102), (80, 3998051), (709, 451120), (1418, 225560), (2836, 112780), (3545, 90224), (5639, 56720), (5672, 56390), (7090, 45112), (11278, 28360), (11344, 28195), (14180, 22556)]