20177377960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1\times {\mathrm{269}}^1$

素因数の和:803

約数の個数: 128

約数和(自身を含む): 47421158400

約数和(自身を除く): 27243780440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 241, 248, 251, 269, 310, 482, 502, 538, 620, 964, 1004, 1076, 1205, 1240, 1255, 1345, 1928, 2008, 2152, 2410, 2510, 2690, 4820, 5020, 5380, 7471, 7781, 8339, 9640, 10040, 10760, 14942, 15562, 16678, 29884, 31124, 33356, 37355, 38905, 41695, 59768, 60491, 62248, 64829, 66712, 67519, 74710, 77810, 83390, 120982, 129658, 135038, 149420, 155620, 166780, 241964, 259316, 270076, 298840, 302455, 311240, 324145, 333560, 337595, 483928, 518632, 540152, 604910, 648290, 675190, 1209820, 1296580, 1350380, 1875221, 2009699, 2093089, 2419640, 2593160, 2700760, 3750442, 4019398, 4186178, 7500884, 8038796, 8372356, 9376105, 10048495, 10465445, 15001768, 16077592, 16272079, 16744712, 18752210, 20096990, 20930890, 32544158, 37504420, 40193980, 41861780, 65088316, 75008840, 80387960, 81360395, 83723560, 130176632, 162720790, 325441580, 504434449, 650883160, 1008868898, 2017737796, 2522172245, 4035475592, 5044344490, 10088688980, 20177377960]

約数ペア:

[(1, 20177377960), (2, 10088688980), (4, 5044344490), (5, 4035475592), (8, 2522172245), (10, 2017737796), (20, 1008868898), (31, 650883160), (40, 504434449), (62, 325441580), (124, 162720790), (155, 130176632), (241, 83723560), (248, 81360395), (251, 80387960), (269, 75008840), (310, 65088316), (482, 41861780), (502, 40193980), (538, 37504420), (620, 32544158), (964, 20930890), (1004, 20096990), (1076, 18752210), (1205, 16744712), (1240, 16272079), (1255, 16077592), (1345, 15001768), (1928, 10465445), (2008, 10048495), (2152, 9376105), (2410, 8372356), (2510, 8038796), (2690, 7500884), (4820, 4186178), (5020, 4019398), (5380, 3750442), (7471, 2700760), (7781, 2593160), (8339, 2419640), (9640, 2093089), (10040, 2009699), (10760, 1875221), (14942, 1350380), (15562, 1296580), (16678, 1209820), (29884, 675190), (31124, 648290), (33356, 604910), (37355, 540152), (38905, 518632), (41695, 483928), (59768, 337595), (60491, 333560), (62248, 324145), (64829, 311240), (66712, 302455), (67519, 298840), (74710, 270076), (77810, 259316), (83390, 241964), (120982, 166780), (129658, 155620), (135038, 149420)]