28320525

素因数分解:

$3^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:866

約数の個数: 36

約数和(自身を含む): 51068160

約数和(自身を除く): 22747635

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 191, 225, 573, 659, 955, 1719, 1977, 2865, 3295, 4775, 5931, 8595, 9885, 14325, 16475, 29655, 42975, 49425, 125869, 148275, 377607, 629345, 1132821, 1888035, 3146725, 5664105, 9440175, 28320525]

約数ペア:

[(1, 28320525), (3, 9440175), (5, 5664105), (9, 3146725), (15, 1888035), (25, 1132821), (45, 629345), (75, 377607), (191, 148275), (225, 125869), (573, 49425), (659, 42975), (955, 29655), (1719, 16475), (1977, 14325), (2865, 9885), (3295, 8595), (4775, 5931)]