21167685040

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1\times {\mathrm{9323}}^1$

素因数の和:9718

約数の個数: 80

約数和(自身を含む): 49884369696

約数和(自身を除く): 28716684656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 281, 404, 505, 562, 808, 1010, 1124, 1405, 1616, 2020, 2248, 2810, 4040, 4496, 5620, 8080, 9323, 11240, 18646, 22480, 28381, 37292, 46615, 56762, 74584, 93230, 113524, 141905, 149168, 186460, 227048, 283810, 372920, 454096, 567620, 745840, 941623, 1135240, 1883246, 2270480, 2619763, 3766492, 4708115, 5239526, 7532984, 9416230, 10479052, 13098815, 15065968, 18832460, 20958104, 26197630, 37664920, 41916208, 52395260, 75329840, 104790520, 209581040, 264596063, 529192126, 1058384252, 1322980315, 2116768504, 2645960630, 4233537008, 5291921260, 10583842520, 21167685040]

約数ペア:

[(1, 21167685040), (2, 10583842520), (4, 5291921260), (5, 4233537008), (8, 2645960630), (10, 2116768504), (16, 1322980315), (20, 1058384252), (40, 529192126), (80, 264596063), (101, 209581040), (202, 104790520), (281, 75329840), (404, 52395260), (505, 41916208), (562, 37664920), (808, 26197630), (1010, 20958104), (1124, 18832460), (1405, 15065968), (1616, 13098815), (2020, 10479052), (2248, 9416230), (2810, 7532984), (4040, 5239526), (4496, 4708115), (5620, 3766492), (8080, 2619763), (9323, 2270480), (11240, 1883246), (18646, 1135240), (22480, 941623), (28381, 745840), (37292, 567620), (46615, 454096), (56762, 372920), (74584, 283810), (93230, 227048), (113524, 186460), (141905, 149168)]