31781880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6791}}^1$

素因数の和:6821

約数の個数: 96

約数和(自身を含む): 111252960

約数和(自身を除く): 79471080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4680, 6791, 13582, 20373, 27164, 33955, 40746, 54328, 61119, 67910, 81492, 88283, 101865, 122238, 135820, 162984, 176566, 203730, 244476, 264849, 271640, 305595, 353132, 407460, 441415, 488952, 529698, 611190, 706264, 794547, 814920, 882830, 1059396, 1222380, 1324245, 1589094, 1765660, 2118792, 2444760, 2648490, 3178188, 3531320, 3972735, 5296980, 6356376, 7945470, 10593960, 15890940, 31781880]

約数ペア:

[(1, 31781880), (2, 15890940), (3, 10593960), (4, 7945470), (5, 6356376), (6, 5296980), (8, 3972735), (9, 3531320), (10, 3178188), (12, 2648490), (13, 2444760), (15, 2118792), (18, 1765660), (20, 1589094), (24, 1324245), (26, 1222380), (30, 1059396), (36, 882830), (39, 814920), (40, 794547), (45, 706264), (52, 611190), (60, 529698), (65, 488952), (72, 441415), (78, 407460), (90, 353132), (104, 305595), (117, 271640), (120, 264849), (130, 244476), (156, 203730), (180, 176566), (195, 162984), (234, 135820), (260, 122238), (312, 101865), (360, 88283), (390, 81492), (468, 67910), (520, 61119), (585, 54328), (780, 40746), (936, 33955), (1170, 27164), (1560, 20373), (2340, 13582), (4680, 6791)]