83709820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 195148800

約数和(自身を除く): 111438980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 47, 76, 86, 94, 95, 109, 172, 188, 190, 215, 218, 235, 380, 430, 436, 470, 545, 817, 860, 893, 940, 1090, 1634, 1786, 2021, 2071, 2180, 3268, 3572, 4042, 4085, 4142, 4465, 4687, 5123, 8084, 8170, 8284, 8930, 9374, 10105, 10246, 10355, 16340, 17860, 18748, 20210, 20492, 20710, 23435, 25615, 38399, 40420, 41420, 46870, 51230, 76798, 89053, 93740, 97337, 102460, 153596, 178106, 191995, 194674, 220289, 356212, 383990, 389348, 440578, 445265, 486685, 767980, 881156, 890530, 973370, 1101445, 1781060, 1946740, 2202890, 4185491, 4405780, 8370982, 16741964, 20927455, 41854910, 83709820]

約数ペア:

[(1, 83709820), (2, 41854910), (4, 20927455), (5, 16741964), (10, 8370982), (19, 4405780), (20, 4185491), (38, 2202890), (43, 1946740), (47, 1781060), (76, 1101445), (86, 973370), (94, 890530), (95, 881156), (109, 767980), (172, 486685), (188, 445265), (190, 440578), (215, 389348), (218, 383990), (235, 356212), (380, 220289), (430, 194674), (436, 191995), (470, 178106), (545, 153596), (817, 102460), (860, 97337), (893, 93740), (940, 89053), (1090, 76798), (1634, 51230), (1786, 46870), (2021, 41420), (2071, 40420), (2180, 38399), (3268, 25615), (3572, 23435), (4042, 20710), (4085, 20492), (4142, 20210), (4465, 18748), (4687, 17860), (5123, 16340), (8084, 10355), (8170, 10246), (8284, 10105), (8930, 9374)]