208815525

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 388118016

約数和(自身を除く): 179302491

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 113, 129, 191, 215, 225, 339, 387, 565, 573, 645, 955, 1017, 1075, 1695, 1719, 1935, 2825, 2865, 3225, 4775, 4859, 5085, 8213, 8475, 8595, 9675, 14325, 14577, 21583, 24295, 24639, 25425, 41065, 42975, 43731, 64749, 72885, 73917, 107915, 121475, 123195, 194247, 205325, 218655, 323745, 364425, 369585, 539575, 615975, 928069, 971235, 1093275, 1618725, 1847925, 2784207, 4640345, 4856175, 8352621, 13921035, 23201725, 41763105, 69605175, 208815525]

約数ペア:

[(1, 208815525), (3, 69605175), (5, 41763105), (9, 23201725), (15, 13921035), (25, 8352621), (43, 4856175), (45, 4640345), (75, 2784207), (113, 1847925), (129, 1618725), (191, 1093275), (215, 971235), (225, 928069), (339, 615975), (387, 539575), (565, 369585), (573, 364425), (645, 323745), (955, 218655), (1017, 205325), (1075, 194247), (1695, 123195), (1719, 121475), (1935, 107915), (2825, 73917), (2865, 72885), (3225, 64749), (4775, 43731), (4859, 42975), (5085, 41065), (8213, 25425), (8475, 24639), (8595, 24295), (9675, 21583), (14325, 14577)]