90214400

素因数分解:

$2^{12}\times 5^2\times {\mathrm{881}}^1$

素因数の和:915

約数の個数: 78

約数和(自身を含む): 223958322

約数和(自身を除く): 133743922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 881, 1024, 1280, 1600, 1762, 2048, 2560, 3200, 3524, 4096, 4405, 5120, 6400, 7048, 8810, 10240, 12800, 14096, 17620, 20480, 22025, 25600, 28192, 35240, 44050, 51200, 56384, 70480, 88100, 102400, 112768, 140960, 176200, 225536, 281920, 352400, 451072, 563840, 704800, 902144, 1127680, 1409600, 1804288, 2255360, 2819200, 3608576, 4510720, 5638400, 9021440, 11276800, 18042880, 22553600, 45107200, 90214400]

約数ペア:

[(1, 90214400), (2, 45107200), (4, 22553600), (5, 18042880), (8, 11276800), (10, 9021440), (16, 5638400), (20, 4510720), (25, 3608576), (32, 2819200), (40, 2255360), (50, 1804288), (64, 1409600), (80, 1127680), (100, 902144), (128, 704800), (160, 563840), (200, 451072), (256, 352400), (320, 281920), (400, 225536), (512, 176200), (640, 140960), (800, 112768), (881, 102400), (1024, 88100), (1280, 70480), (1600, 56384), (1762, 51200), (2048, 44050), (2560, 35240), (3200, 28192), (3524, 25600), (4096, 22025), (4405, 20480), (5120, 17620), (6400, 14096), (7048, 12800), (8810, 10240)]