28299700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2017

約数の個数: 72

約数和(自身を含む): 72182880

約数和(自身を除く): 43883180

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 1979, 2860, 3575, 3958, 7150, 7916, 9895, 14300, 19790, 21769, 25727, 39580, 43538, 49475, 51454, 87076, 98950, 102908, 108845, 128635, 197900, 217690, 257270, 282997, 435380, 514540, 544225, 565994, 643175, 1088450, 1131988, 1286350, 1414985, 2176900, 2572700, 2829970, 5659940, 7074925, 14149850, 28299700]

約数ペア:

[(1, 28299700), (2, 14149850), (4, 7074925), (5, 5659940), (10, 2829970), (11, 2572700), (13, 2176900), (20, 1414985), (22, 1286350), (25, 1131988), (26, 1088450), (44, 643175), (50, 565994), (52, 544225), (55, 514540), (65, 435380), (100, 282997), (110, 257270), (130, 217690), (143, 197900), (220, 128635), (260, 108845), (275, 102908), (286, 98950), (325, 87076), (550, 51454), (572, 49475), (650, 43538), (715, 39580), (1100, 25727), (1300, 21769), (1430, 19790), (1979, 14300), (2860, 9895), (3575, 7916), (3958, 7150)]