81521100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:409

約数の個数: 144

約数和(自身を含む): 265434400

約数和(自身を除く): 183913300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 109, 135, 150, 180, 218, 225, 270, 277, 300, 327, 436, 450, 540, 545, 554, 654, 675, 831, 900, 981, 1090, 1108, 1308, 1350, 1385, 1635, 1662, 1962, 2180, 2493, 2700, 2725, 2770, 2943, 3270, 3324, 3924, 4155, 4905, 4986, 5450, 5540, 5886, 6540, 6925, 7479, 8175, 8310, 9810, 9972, 10900, 11772, 12465, 13850, 14715, 14958, 16350, 16620, 19620, 20775, 24525, 24930, 27700, 29430, 29916, 30193, 32700, 37395, 41550, 49050, 49860, 58860, 60386, 62325, 73575, 74790, 83100, 90579, 98100, 120772, 124650, 147150, 149580, 150965, 181158, 186975, 249300, 271737, 294300, 301930, 362316, 373950, 452895, 543474, 603860, 747900, 754825, 815211, 905790, 1086948, 1358685, 1509650, 1630422, 1811580, 2264475, 2717370, 3019300, 3260844, 4076055, 4528950, 5434740, 6793425, 8152110, 9057900, 13586850, 16304220, 20380275, 27173700, 40760550, 81521100]

約数ペア:

[(1, 81521100), (2, 40760550), (3, 27173700), (4, 20380275), (5, 16304220), (6, 13586850), (9, 9057900), (10, 8152110), (12, 6793425), (15, 5434740), (18, 4528950), (20, 4076055), (25, 3260844), (27, 3019300), (30, 2717370), (36, 2264475), (45, 1811580), (50, 1630422), (54, 1509650), (60, 1358685), (75, 1086948), (90, 905790), (100, 815211), (108, 754825), (109, 747900), (135, 603860), (150, 543474), (180, 452895), (218, 373950), (225, 362316), (270, 301930), (277, 294300), (300, 271737), (327, 249300), (436, 186975), (450, 181158), (540, 150965), (545, 149580), (554, 147150), (654, 124650), (675, 120772), (831, 98100), (900, 90579), (981, 83100), (1090, 74790), (1108, 73575), (1308, 62325), (1350, 60386), (1385, 58860), (1635, 49860), (1662, 49050), (1962, 41550), (2180, 37395), (2493, 32700), (2700, 30193), (2725, 29916), (2770, 29430), (2943, 27700), (3270, 24930), (3324, 24525), (3924, 20775), (4155, 19620), (4905, 16620), (4986, 16350), (5450, 14958), (5540, 14715), (5886, 13850), (6540, 12465), (6925, 11772), (7479, 10900), (8175, 9972), (8310, 9810)]