1645349740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{2833}}^1$

素因数の和:3322

約数の個数: 48

約数和(自身を含む): 3513706560

約数和(自身を除く): 1868356820

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 409, 710, 818, 1420, 1636, 2045, 2833, 4090, 5666, 8180, 11332, 14165, 28330, 29039, 56660, 58078, 116156, 145195, 201143, 290390, 402286, 580780, 804572, 1005715, 1158697, 2011430, 2317394, 4022860, 4634788, 5793485, 11586970, 23173940, 82267487, 164534974, 329069948, 411337435, 822674870, 1645349740]

約数ペア:

[(1, 1645349740), (2, 822674870), (4, 411337435), (5, 329069948), (10, 164534974), (20, 82267487), (71, 23173940), (142, 11586970), (284, 5793485), (355, 4634788), (409, 4022860), (710, 2317394), (818, 2011430), (1420, 1158697), (1636, 1005715), (2045, 804572), (2833, 580780), (4090, 402286), (5666, 290390), (8180, 201143), (11332, 145195), (14165, 116156), (28330, 58078), (29039, 56660)]