21412400

素因数分解:

$2^4\times 5^2\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:486

約数の個数: 60

約数和(自身を含む): 51894000

約数和(自身を除く): 30481600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 199, 200, 269, 398, 400, 538, 796, 995, 1076, 1345, 1592, 1990, 2152, 2690, 3184, 3980, 4304, 4975, 5380, 6725, 7960, 9950, 10760, 13450, 15920, 19900, 21520, 26900, 39800, 53531, 53800, 79600, 107062, 107600, 214124, 267655, 428248, 535310, 856496, 1070620, 1338275, 2141240, 2676550, 4282480, 5353100, 10706200, 21412400]

約数ペア:

[(1, 21412400), (2, 10706200), (4, 5353100), (5, 4282480), (8, 2676550), (10, 2141240), (16, 1338275), (20, 1070620), (25, 856496), (40, 535310), (50, 428248), (80, 267655), (100, 214124), (199, 107600), (200, 107062), (269, 79600), (398, 53800), (400, 53531), (538, 39800), (796, 26900), (995, 21520), (1076, 19900), (1345, 15920), (1592, 13450), (1990, 10760), (2152, 9950), (2690, 7960), (3184, 6725), (3980, 5380), (4304, 4975)]