20210727200

素因数分解:

$2^5\times 5^2\times {\mathrm{647}}^1\times {\mathrm{39047}}^1$

素因数の和:39714

約数の個数: 72

約数和(自身を含む): 49416962112

約数和(自身を除く): 29206234912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 647, 800, 1294, 2588, 3235, 5176, 6470, 10352, 12940, 16175, 20704, 25880, 32350, 39047, 51760, 64700, 78094, 103520, 129400, 156188, 195235, 258800, 312376, 390470, 517600, 624752, 780940, 976175, 1249504, 1561880, 1952350, 3123760, 3904700, 6247520, 7809400, 15618800, 25263409, 31237600, 50526818, 101053636, 126317045, 202107272, 252634090, 404214544, 505268180, 631585225, 808429088, 1010536360, 1263170450, 2021072720, 2526340900, 4042145440, 5052681800, 10105363600, 20210727200]

約数ペア:

[(1, 20210727200), (2, 10105363600), (4, 5052681800), (5, 4042145440), (8, 2526340900), (10, 2021072720), (16, 1263170450), (20, 1010536360), (25, 808429088), (32, 631585225), (40, 505268180), (50, 404214544), (80, 252634090), (100, 202107272), (160, 126317045), (200, 101053636), (400, 50526818), (647, 31237600), (800, 25263409), (1294, 15618800), (2588, 7809400), (3235, 6247520), (5176, 3904700), (6470, 3123760), (10352, 1952350), (12940, 1561880), (16175, 1249504), (20704, 976175), (25880, 780940), (32350, 624752), (39047, 517600), (51760, 390470), (64700, 312376), (78094, 258800), (103520, 195235), (129400, 156188)]