19544580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9871}}^1$

素因数の和:9897

約数の個数: 72

約数和(自身を含む): 64681344

約数和(自身を除く): 45136764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9871, 19742, 29613, 39484, 49355, 59226, 88839, 98710, 108581, 118452, 148065, 177678, 197420, 217162, 296130, 325743, 355356, 434324, 444195, 542905, 592260, 651486, 888390, 977229, 1085810, 1302972, 1628715, 1776780, 1954458, 2171620, 3257430, 3908916, 4886145, 6514860, 9772290, 19544580]

約数ペア:

[(1, 19544580), (2, 9772290), (3, 6514860), (4, 4886145), (5, 3908916), (6, 3257430), (9, 2171620), (10, 1954458), (11, 1776780), (12, 1628715), (15, 1302972), (18, 1085810), (20, 977229), (22, 888390), (30, 651486), (33, 592260), (36, 542905), (44, 444195), (45, 434324), (55, 355356), (60, 325743), (66, 296130), (90, 217162), (99, 197420), (110, 177678), (132, 148065), (165, 118452), (180, 108581), (198, 98710), (220, 88839), (330, 59226), (396, 49355), (495, 39484), (660, 29613), (990, 19742), (1980, 9871)]