81563160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1201

約数の個数: 128

約数和(自身を含む): 283046400

約数和(自身を除く): 201483240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 89, 105, 120, 140, 168, 178, 210, 267, 280, 356, 420, 445, 534, 623, 712, 840, 890, 1068, 1091, 1246, 1335, 1780, 1869, 2136, 2182, 2492, 2670, 3115, 3273, 3560, 3738, 4364, 4984, 5340, 5455, 6230, 6546, 7476, 7637, 8728, 9345, 10680, 10910, 12460, 13092, 14952, 15274, 16365, 18690, 21820, 22911, 24920, 26184, 30548, 32730, 37380, 38185, 43640, 45822, 61096, 65460, 74760, 76370, 91644, 97099, 114555, 130920, 152740, 183288, 194198, 229110, 291297, 305480, 388396, 458220, 485495, 582594, 679693, 776792, 916440, 970990, 1165188, 1359386, 1456485, 1941980, 2039079, 2330376, 2718772, 2912970, 3398465, 3883960, 4078158, 5437544, 5825940, 6796930, 8156316, 10195395, 11651880, 13593860, 16312632, 20390790, 27187720, 40781580, 81563160]

約数ペア:

[(1, 81563160), (2, 40781580), (3, 27187720), (4, 20390790), (5, 16312632), (6, 13593860), (7, 11651880), (8, 10195395), (10, 8156316), (12, 6796930), (14, 5825940), (15, 5437544), (20, 4078158), (21, 3883960), (24, 3398465), (28, 2912970), (30, 2718772), (35, 2330376), (40, 2039079), (42, 1941980), (56, 1456485), (60, 1359386), (70, 1165188), (84, 970990), (89, 916440), (105, 776792), (120, 679693), (140, 582594), (168, 485495), (178, 458220), (210, 388396), (267, 305480), (280, 291297), (356, 229110), (420, 194198), (445, 183288), (534, 152740), (623, 130920), (712, 114555), (840, 97099), (890, 91644), (1068, 76370), (1091, 74760), (1246, 65460), (1335, 61096), (1780, 45822), (1869, 43640), (2136, 38185), (2182, 37380), (2492, 32730), (2670, 30548), (3115, 26184), (3273, 24920), (3560, 22911), (3738, 21820), (4364, 18690), (4984, 16365), (5340, 15274), (5455, 14952), (6230, 13092), (6546, 12460), (7476, 10910), (7637, 10680), (8728, 9345)]