21178400

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1151}}^1$

素因数の和:1194

約数の個数: 72

約数和(自身を含む): 53996544

約数和(自身を除く): 32818144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 368, 400, 460, 575, 736, 800, 920, 1150, 1151, 1840, 2300, 2302, 3680, 4600, 4604, 5755, 9200, 9208, 11510, 18400, 18416, 23020, 26473, 28775, 36832, 46040, 52946, 57550, 92080, 105892, 115100, 132365, 184160, 211784, 230200, 264730, 423568, 460400, 529460, 661825, 847136, 920800, 1058920, 1323650, 2117840, 2647300, 4235680, 5294600, 10589200, 21178400]

約数ペア:

[(1, 21178400), (2, 10589200), (4, 5294600), (5, 4235680), (8, 2647300), (10, 2117840), (16, 1323650), (20, 1058920), (23, 920800), (25, 847136), (32, 661825), (40, 529460), (46, 460400), (50, 423568), (80, 264730), (92, 230200), (100, 211784), (115, 184160), (160, 132365), (184, 115100), (200, 105892), (230, 92080), (368, 57550), (400, 52946), (460, 46040), (575, 36832), (736, 28775), (800, 26473), (920, 23020), (1150, 18416), (1151, 18400), (1840, 11510), (2300, 9208), (2302, 9200), (3680, 5755), (4600, 4604)]