80478400

素因数分解:

$2^6\times 5^2\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:482

約数の個数: 84

約数和(自身を含む): 199842120

約数和(自身を除く): 119363720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 179, 200, 281, 320, 358, 400, 562, 716, 800, 895, 1124, 1405, 1432, 1600, 1790, 2248, 2810, 2864, 3580, 4475, 4496, 5620, 5728, 7025, 7160, 8950, 8992, 11240, 11456, 14050, 14320, 17900, 17984, 22480, 28100, 28640, 35800, 44960, 50299, 56200, 57280, 71600, 89920, 100598, 112400, 143200, 201196, 224800, 251495, 286400, 402392, 449600, 502990, 804784, 1005980, 1257475, 1609568, 2011960, 2514950, 3219136, 4023920, 5029900, 8047840, 10059800, 16095680, 20119600, 40239200, 80478400]

約数ペア:

[(1, 80478400), (2, 40239200), (4, 20119600), (5, 16095680), (8, 10059800), (10, 8047840), (16, 5029900), (20, 4023920), (25, 3219136), (32, 2514950), (40, 2011960), (50, 1609568), (64, 1257475), (80, 1005980), (100, 804784), (160, 502990), (179, 449600), (200, 402392), (281, 286400), (320, 251495), (358, 224800), (400, 201196), (562, 143200), (716, 112400), (800, 100598), (895, 89920), (1124, 71600), (1405, 57280), (1432, 56200), (1600, 50299), (1790, 44960), (2248, 35800), (2810, 28640), (2864, 28100), (3580, 22480), (4475, 17984), (4496, 17900), (5620, 14320), (5728, 14050), (7025, 11456), (7160, 11240), (8950, 8992)]