20677940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24367564

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 164, 167, 205, 302, 334, 410, 604, 668, 755, 820, 835, 1510, 1670, 3020, 3340, 6191, 6847, 12382, 13694, 24764, 25217, 27388, 30955, 34235, 50434, 61910, 68470, 100868, 123820, 126085, 136940, 252170, 504340, 1033897, 2067794, 4135588, 5169485, 10338970, 20677940]

約数ペア:

[(1, 20677940), (2, 10338970), (4, 5169485), (5, 4135588), (10, 2067794), (20, 1033897), (41, 504340), (82, 252170), (151, 136940), (164, 126085), (167, 123820), (205, 100868), (302, 68470), (334, 61910), (410, 50434), (604, 34235), (668, 30955), (755, 27388), (820, 25217), (835, 24764), (1510, 13694), (1670, 12382), (3020, 6847), (3340, 6191)]