21067920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1009}}^1$

素因数の和:1057

約数の個数: 120

約数和(自身を含む): 73265400

約数和(自身を除く): 52197480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 1009, 1044, 1160, 1305, 1392, 1740, 2018, 2088, 2320, 2610, 3027, 3480, 4036, 4176, 5045, 5220, 6054, 6960, 8072, 9081, 10090, 10440, 12108, 15135, 16144, 18162, 20180, 20880, 24216, 29261, 30270, 36324, 40360, 45405, 48432, 58522, 60540, 72648, 80720, 87783, 90810, 117044, 121080, 145296, 146305, 175566, 181620, 234088, 242160, 263349, 292610, 351132, 363240, 438915, 468176, 526698, 585220, 702264, 726480, 877830, 1053396, 1170440, 1316745, 1404528, 1755660, 2106792, 2340880, 2633490, 3511320, 4213584, 5266980, 7022640, 10533960, 21067920]

約数ペア:

[(1, 21067920), (2, 10533960), (3, 7022640), (4, 5266980), (5, 4213584), (6, 3511320), (8, 2633490), (9, 2340880), (10, 2106792), (12, 1755660), (15, 1404528), (16, 1316745), (18, 1170440), (20, 1053396), (24, 877830), (29, 726480), (30, 702264), (36, 585220), (40, 526698), (45, 468176), (48, 438915), (58, 363240), (60, 351132), (72, 292610), (80, 263349), (87, 242160), (90, 234088), (116, 181620), (120, 175566), (144, 146305), (145, 145296), (174, 121080), (180, 117044), (232, 90810), (240, 87783), (261, 80720), (290, 72648), (348, 60540), (360, 58522), (435, 48432), (464, 45405), (522, 40360), (580, 36324), (696, 30270), (720, 29261), (870, 24216), (1009, 20880), (1044, 20180), (1160, 18162), (1305, 16144), (1392, 15135), (1740, 12108), (2018, 10440), (2088, 10090), (2320, 9081), (2610, 8072), (3027, 6960), (3480, 6054), (4036, 5220), (4176, 5045)]