21370400

素因数分解:

$2^5\times 5^2\times {\mathrm{26713}}^1$

素因数の和:26733

約数の個数: 36

約数和(自身を含む): 52172442

約数和(自身を除く): 30802042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26713, 53426, 106852, 133565, 213704, 267130, 427408, 534260, 667825, 854816, 1068520, 1335650, 2137040, 2671300, 4274080, 5342600, 10685200, 21370400]

約数ペア:

[(1, 21370400), (2, 10685200), (4, 5342600), (5, 4274080), (8, 2671300), (10, 2137040), (16, 1335650), (20, 1068520), (25, 854816), (32, 667825), (40, 534260), (50, 427408), (80, 267130), (100, 213704), (160, 133565), (200, 106852), (400, 53426), (800, 26713)]