90318080

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1783

約数の個数: 72

約数和(自身を含む): 221745384

約数和(自身を除く): 131427304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1640, 1721, 2624, 3280, 3442, 5248, 6560, 6884, 8605, 10496, 13120, 13768, 17210, 26240, 27536, 34420, 52480, 55072, 68840, 70561, 110144, 137680, 141122, 220288, 275360, 282244, 352805, 440576, 550720, 564488, 705610, 1101440, 1128976, 1411220, 2202880, 2257952, 2822440, 4515904, 5644880, 9031808, 11289760, 18063616, 22579520, 45159040, 90318080]

約数ペア:

[(1, 90318080), (2, 45159040), (4, 22579520), (5, 18063616), (8, 11289760), (10, 9031808), (16, 5644880), (20, 4515904), (32, 2822440), (40, 2257952), (41, 2202880), (64, 1411220), (80, 1128976), (82, 1101440), (128, 705610), (160, 564488), (164, 550720), (205, 440576), (256, 352805), (320, 282244), (328, 275360), (410, 220288), (640, 141122), (656, 137680), (820, 110144), (1280, 70561), (1312, 68840), (1640, 55072), (1721, 52480), (2624, 34420), (3280, 27536), (3442, 26240), (5248, 17210), (6560, 13768), (6884, 13120), (8605, 10496)]