20119600

素因数分解:

$2^4\times 5^2\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:478

約数の個数: 60

約数和(自身を含む): 48780360

約数和(自身を除く): 28660760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 179, 200, 281, 358, 400, 562, 716, 895, 1124, 1405, 1432, 1790, 2248, 2810, 2864, 3580, 4475, 4496, 5620, 7025, 7160, 8950, 11240, 14050, 14320, 17900, 22480, 28100, 35800, 50299, 56200, 71600, 100598, 112400, 201196, 251495, 402392, 502990, 804784, 1005980, 1257475, 2011960, 2514950, 4023920, 5029900, 10059800, 20119600]

約数ペア:

[(1, 20119600), (2, 10059800), (4, 5029900), (5, 4023920), (8, 2514950), (10, 2011960), (16, 1257475), (20, 1005980), (25, 804784), (40, 502990), (50, 402392), (80, 251495), (100, 201196), (179, 112400), (200, 100598), (281, 71600), (358, 56200), (400, 50299), (562, 35800), (716, 28100), (895, 22480), (1124, 17900), (1405, 14320), (1432, 14050), (1790, 11240), (2248, 8950), (2810, 7160), (2864, 7025), (3580, 5620), (4475, 4496)]