678485900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{619}}^1$

素因数の和:843

約数の個数: 72

約数和(自身を含む): 1503080880

約数和(自身を除く): 824594980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 113, 194, 226, 388, 452, 485, 565, 619, 970, 1130, 1238, 1940, 2260, 2425, 2476, 2825, 3095, 4850, 5650, 6190, 9700, 10961, 11300, 12380, 15475, 21922, 30950, 43844, 54805, 60043, 61900, 69947, 109610, 120086, 139894, 219220, 240172, 274025, 279788, 300215, 349735, 548050, 600430, 699470, 1096100, 1200860, 1398940, 1501075, 1748675, 3002150, 3497350, 6004300, 6784859, 6994700, 13569718, 27139436, 33924295, 67848590, 135697180, 169621475, 339242950, 678485900]

約数ペア:

[(1, 678485900), (2, 339242950), (4, 169621475), (5, 135697180), (10, 67848590), (20, 33924295), (25, 27139436), (50, 13569718), (97, 6994700), (100, 6784859), (113, 6004300), (194, 3497350), (226, 3002150), (388, 1748675), (452, 1501075), (485, 1398940), (565, 1200860), (619, 1096100), (970, 699470), (1130, 600430), (1238, 548050), (1940, 349735), (2260, 300215), (2425, 279788), (2476, 274025), (2825, 240172), (3095, 219220), (4850, 139894), (5650, 120086), (6190, 109610), (9700, 69947), (10961, 61900), (11300, 60043), (12380, 54805), (15475, 43844), (21922, 30950)]