80245800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 144

約数和(自身を含む): 272629500

約数和(自身を除く): 192383700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 109, 120, 150, 180, 200, 218, 225, 300, 327, 360, 409, 436, 450, 545, 600, 654, 818, 872, 900, 981, 1090, 1227, 1308, 1635, 1636, 1800, 1962, 2045, 2180, 2454, 2616, 2725, 3270, 3272, 3681, 3924, 4090, 4360, 4905, 4908, 5450, 6135, 6540, 7362, 7848, 8175, 8180, 9810, 9816, 10225, 10900, 12270, 13080, 14724, 16350, 16360, 18405, 19620, 20450, 21800, 24525, 24540, 29448, 30675, 32700, 36810, 39240, 40900, 44581, 49050, 49080, 61350, 65400, 73620, 81800, 89162, 92025, 98100, 122700, 133743, 147240, 178324, 184050, 196200, 222905, 245400, 267486, 356648, 368100, 401229, 445810, 534972, 668715, 736200, 802458, 891620, 1069944, 1114525, 1337430, 1604916, 1783240, 2006145, 2229050, 2674860, 3209832, 3343575, 4012290, 4458100, 5349720, 6687150, 8024580, 8916200, 10030725, 13374300, 16049160, 20061450, 26748600, 40122900, 80245800]

約数ペア:

[(1, 80245800), (2, 40122900), (3, 26748600), (4, 20061450), (5, 16049160), (6, 13374300), (8, 10030725), (9, 8916200), (10, 8024580), (12, 6687150), (15, 5349720), (18, 4458100), (20, 4012290), (24, 3343575), (25, 3209832), (30, 2674860), (36, 2229050), (40, 2006145), (45, 1783240), (50, 1604916), (60, 1337430), (72, 1114525), (75, 1069944), (90, 891620), (100, 802458), (109, 736200), (120, 668715), (150, 534972), (180, 445810), (200, 401229), (218, 368100), (225, 356648), (300, 267486), (327, 245400), (360, 222905), (409, 196200), (436, 184050), (450, 178324), (545, 147240), (600, 133743), (654, 122700), (818, 98100), (872, 92025), (900, 89162), (981, 81800), (1090, 73620), (1227, 65400), (1308, 61350), (1635, 49080), (1636, 49050), (1800, 44581), (1962, 40900), (2045, 39240), (2180, 36810), (2454, 32700), (2616, 30675), (2725, 29448), (3270, 24540), (3272, 24525), (3681, 21800), (3924, 20450), (4090, 19620), (4360, 18405), (4905, 16360), (4908, 16350), (5450, 14724), (6135, 13080), (6540, 12270), (7362, 10900), (7848, 10225), (8175, 9816), (8180, 9810)]