1261891900

素因数分解:

$2^2\times 5^2\times {\mathrm{151}}^1\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:791

約数の個数: 72

約数和(自身を含む): 2777120864

約数和(自身を除く): 1515228964

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 151, 193, 302, 386, 433, 604, 755, 772, 866, 965, 1510, 1732, 1930, 2165, 3020, 3775, 3860, 4330, 4825, 7550, 8660, 9650, 10825, 15100, 19300, 21650, 29143, 43300, 58286, 65383, 83569, 116572, 130766, 145715, 167138, 261532, 291430, 326915, 334276, 417845, 582860, 653830, 728575, 835690, 1307660, 1457150, 1634575, 1671380, 2089225, 2914300, 3269150, 4178450, 6538300, 8356900, 12618919, 25237838, 50475676, 63094595, 126189190, 252378380, 315472975, 630945950, 1261891900]

約数ペア:

[(1, 1261891900), (2, 630945950), (4, 315472975), (5, 252378380), (10, 126189190), (20, 63094595), (25, 50475676), (50, 25237838), (100, 12618919), (151, 8356900), (193, 6538300), (302, 4178450), (386, 3269150), (433, 2914300), (604, 2089225), (755, 1671380), (772, 1634575), (866, 1457150), (965, 1307660), (1510, 835690), (1732, 728575), (1930, 653830), (2165, 582860), (3020, 417845), (3775, 334276), (3860, 326915), (4330, 291430), (4825, 261532), (7550, 167138), (8660, 145715), (9650, 130766), (10825, 116572), (15100, 83569), (19300, 65383), (21650, 58286), (29143, 43300)]