205127840

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13217}}^1$

素因数の和:13329

約数の個数: 48

約数和(自身を含む): 489647592

約数和(自身を除く): 284519752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 7760, 13217, 15520, 26434, 52868, 66085, 105736, 132170, 211472, 264340, 422944, 528680, 1057360, 1282049, 2114720, 2564098, 5128196, 6410245, 10256392, 12820490, 20512784, 25640980, 41025568, 51281960, 102563920, 205127840]

約数ペア:

[(1, 205127840), (2, 102563920), (4, 51281960), (5, 41025568), (8, 25640980), (10, 20512784), (16, 12820490), (20, 10256392), (32, 6410245), (40, 5128196), (80, 2564098), (97, 2114720), (160, 1282049), (194, 1057360), (388, 528680), (485, 422944), (776, 264340), (970, 211472), (1552, 132170), (1940, 105736), (3104, 66085), (3880, 52868), (7760, 26434), (13217, 15520)]