100021900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1151}}^1$

素因数の和:1255

約数の個数: 72

約数和(自身を含む): 239984640

約数和(自身を除く): 139962740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 220, 275, 316, 395, 550, 790, 869, 1100, 1151, 1580, 1738, 1975, 2302, 3476, 3950, 4345, 4604, 5755, 7900, 8690, 11510, 12661, 17380, 21725, 23020, 25322, 28775, 43450, 50644, 57550, 63305, 86900, 90929, 115100, 126610, 181858, 253220, 316525, 363716, 454645, 633050, 909290, 1000219, 1266100, 1818580, 2000438, 2273225, 4000876, 4546450, 5001095, 9092900, 10002190, 20004380, 25005475, 50010950, 100021900]

約数ペア:

[(1, 100021900), (2, 50010950), (4, 25005475), (5, 20004380), (10, 10002190), (11, 9092900), (20, 5001095), (22, 4546450), (25, 4000876), (44, 2273225), (50, 2000438), (55, 1818580), (79, 1266100), (100, 1000219), (110, 909290), (158, 633050), (220, 454645), (275, 363716), (316, 316525), (395, 253220), (550, 181858), (790, 126610), (869, 115100), (1100, 90929), (1151, 86900), (1580, 63305), (1738, 57550), (1975, 50644), (2302, 43450), (3476, 28775), (3950, 25322), (4345, 23020), (4604, 21725), (5755, 17380), (7900, 12661), (8690, 11510)]