19281280

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 47148480

約数和(自身を除く): 27867200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 641, 752, 940, 1282, 1504, 1880, 2564, 3008, 3205, 3760, 5128, 6016, 6410, 7520, 10256, 12820, 15040, 20512, 25640, 30080, 30127, 41024, 51280, 60254, 82048, 102560, 120508, 150635, 205120, 241016, 301270, 410240, 482032, 602540, 964064, 1205080, 1928128, 2410160, 3856256, 4820320, 9640640, 19281280]

約数ペア:

[(1, 19281280), (2, 9640640), (4, 4820320), (5, 3856256), (8, 2410160), (10, 1928128), (16, 1205080), (20, 964064), (32, 602540), (40, 482032), (47, 410240), (64, 301270), (80, 241016), (94, 205120), (128, 150635), (160, 120508), (188, 102560), (235, 82048), (320, 60254), (376, 51280), (470, 41024), (640, 30127), (641, 30080), (752, 25640), (940, 20512), (1282, 15040), (1504, 12820), (1880, 10256), (2564, 7520), (3008, 6410), (3205, 6016), (3760, 5128)]