18525440

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 45585288

約数和(自身を除く): 27059848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 353, 410, 640, 656, 706, 820, 1280, 1312, 1412, 1640, 1765, 2624, 2824, 3280, 3530, 5248, 5648, 6560, 7060, 10496, 11296, 13120, 14120, 14473, 22592, 26240, 28240, 28946, 45184, 52480, 56480, 57892, 72365, 90368, 112960, 115784, 144730, 225920, 231568, 289460, 451840, 463136, 578920, 926272, 1157840, 1852544, 2315680, 3705088, 4631360, 9262720, 18525440]

約数ペア:

[(1, 18525440), (2, 9262720), (4, 4631360), (5, 3705088), (8, 2315680), (10, 1852544), (16, 1157840), (20, 926272), (32, 578920), (40, 463136), (41, 451840), (64, 289460), (80, 231568), (82, 225920), (128, 144730), (160, 115784), (164, 112960), (205, 90368), (256, 72365), (320, 57892), (328, 56480), (353, 52480), (410, 45184), (640, 28946), (656, 28240), (706, 26240), (820, 22592), (1280, 14473), (1312, 14120), (1412, 13120), (1640, 11296), (1765, 10496), (2624, 7060), (2824, 6560), (3280, 5648), (3530, 5248)]