20565532900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{52963}}^1$

素因数の和:53341

約数の個数: 72

約数和(自身を含む): 48823062624

約数和(自身を除く): 28257529724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 353, 550, 706, 1100, 1412, 1765, 3530, 3883, 7060, 7766, 8825, 15532, 17650, 19415, 35300, 38830, 52963, 77660, 97075, 105926, 194150, 211852, 264815, 388300, 529630, 582593, 1059260, 1165186, 1324075, 2330372, 2648150, 2912965, 5296300, 5825930, 11651860, 14564825, 18695939, 29129650, 37391878, 58259300, 74783756, 93479695, 186959390, 205655329, 373918780, 411310658, 467398475, 822621316, 934796950, 1028276645, 1869593900, 2056553290, 4113106580, 5141383225, 10282766450, 20565532900]

約数ペア:

[(1, 20565532900), (2, 10282766450), (4, 5141383225), (5, 4113106580), (10, 2056553290), (11, 1869593900), (20, 1028276645), (22, 934796950), (25, 822621316), (44, 467398475), (50, 411310658), (55, 373918780), (100, 205655329), (110, 186959390), (220, 93479695), (275, 74783756), (353, 58259300), (550, 37391878), (706, 29129650), (1100, 18695939), (1412, 14564825), (1765, 11651860), (3530, 5825930), (3883, 5296300), (7060, 2912965), (7766, 2648150), (8825, 2330372), (15532, 1324075), (17650, 1165186), (19415, 1059260), (35300, 582593), (38830, 529630), (52963, 388300), (77660, 264815), (97075, 211852), (105926, 194150)]