30886900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 74932704

約数和(自身を除く): 44045804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 653, 860, 946, 1075, 1100, 1306, 1892, 2150, 2365, 2612, 3265, 4300, 4730, 6530, 7183, 9460, 11825, 13060, 14366, 16325, 23650, 28079, 28732, 32650, 35915, 47300, 56158, 65300, 71830, 112316, 140395, 143660, 179575, 280790, 308869, 359150, 561580, 617738, 701975, 718300, 1235476, 1403950, 1544345, 2807900, 3088690, 6177380, 7721725, 15443450, 30886900]

約数ペア:

[(1, 30886900), (2, 15443450), (4, 7721725), (5, 6177380), (10, 3088690), (11, 2807900), (20, 1544345), (22, 1403950), (25, 1235476), (43, 718300), (44, 701975), (50, 617738), (55, 561580), (86, 359150), (100, 308869), (110, 280790), (172, 179575), (215, 143660), (220, 140395), (275, 112316), (430, 71830), (473, 65300), (550, 56158), (653, 47300), (860, 35915), (946, 32650), (1075, 28732), (1100, 28079), (1306, 23650), (1892, 16325), (2150, 14366), (2365, 13060), (2612, 11825), (3265, 9460), (4300, 7183), (4730, 6530)]