7828900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1084

約数の個数: 36

約数和(自身を含む): 17221120

約数和(自身を除く): 9392220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 991, 1580, 1975, 1982, 3950, 3964, 4955, 7900, 9910, 19820, 24775, 49550, 78289, 99100, 156578, 313156, 391445, 782890, 1565780, 1957225, 3914450, 7828900]

約数ペア:

[(1, 7828900), (2, 3914450), (4, 1957225), (5, 1565780), (10, 782890), (20, 391445), (25, 313156), (50, 156578), (79, 99100), (100, 78289), (158, 49550), (316, 24775), (395, 19820), (790, 9910), (991, 7900), (1580, 4955), (1975, 3964), (1982, 3950)]