21468400

素因数分解:

$2^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:490

約数の個数: 60

約数和(自身を含む): 52032384

約数和(自身を除く): 30563984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 191, 200, 281, 382, 400, 562, 764, 955, 1124, 1405, 1528, 1910, 2248, 2810, 3056, 3820, 4496, 4775, 5620, 7025, 7640, 9550, 11240, 14050, 15280, 19100, 22480, 28100, 38200, 53671, 56200, 76400, 107342, 112400, 214684, 268355, 429368, 536710, 858736, 1073420, 1341775, 2146840, 2683550, 4293680, 5367100, 10734200, 21468400]

約数ペア:

[(1, 21468400), (2, 10734200), (4, 5367100), (5, 4293680), (8, 2683550), (10, 2146840), (16, 1341775), (20, 1073420), (25, 858736), (40, 536710), (50, 429368), (80, 268355), (100, 214684), (191, 112400), (200, 107342), (281, 76400), (382, 56200), (400, 53671), (562, 38200), (764, 28100), (955, 22480), (1124, 19100), (1405, 15280), (1528, 14050), (1910, 11240), (2248, 9550), (2810, 7640), (3056, 7025), (3820, 5620), (4496, 4775)]