18673280

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 45165600

約数和(自身を除く): 26492320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 179, 320, 326, 358, 640, 652, 716, 815, 895, 1304, 1432, 1630, 1790, 2608, 2864, 3260, 3580, 5216, 5728, 6520, 7160, 10432, 11456, 13040, 14320, 20864, 22912, 26080, 28640, 29177, 52160, 57280, 58354, 104320, 114560, 116708, 145885, 233416, 291770, 466832, 583540, 933664, 1167080, 1867328, 2334160, 3734656, 4668320, 9336640, 18673280]

約数ペア:

[(1, 18673280), (2, 9336640), (4, 4668320), (5, 3734656), (8, 2334160), (10, 1867328), (16, 1167080), (20, 933664), (32, 583540), (40, 466832), (64, 291770), (80, 233416), (128, 145885), (160, 116708), (163, 114560), (179, 104320), (320, 58354), (326, 57280), (358, 52160), (640, 29177), (652, 28640), (716, 26080), (815, 22912), (895, 20864), (1304, 14320), (1432, 13040), (1630, 11456), (1790, 10432), (2608, 7160), (2864, 6520), (3260, 5728), (3580, 5216)]