1948651780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:653

約数の個数: 96

約数和(自身を含む): 4400928000

約数和(自身を除く): 2452276220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 199, 292, 353, 365, 380, 398, 706, 730, 796, 995, 1387, 1412, 1460, 1765, 1990, 2774, 3530, 3781, 3980, 5548, 6707, 6935, 7060, 7562, 13414, 13870, 14527, 15124, 18905, 25769, 26828, 27740, 29054, 33535, 37810, 51538, 58108, 67070, 70247, 72635, 75620, 103076, 128845, 134140, 140494, 145270, 257690, 276013, 280988, 290540, 351235, 489611, 515380, 552026, 702470, 979222, 1104052, 1334693, 1380065, 1404940, 1958444, 2448055, 2669386, 2760130, 4896110, 5128031, 5338772, 5520260, 6673465, 9792220, 10256062, 13346930, 20512124, 25640155, 26693860, 51280310, 97432589, 102560620, 194865178, 389730356, 487162945, 974325890, 1948651780]

約数ペア:

[(1, 1948651780), (2, 974325890), (4, 487162945), (5, 389730356), (10, 194865178), (19, 102560620), (20, 97432589), (38, 51280310), (73, 26693860), (76, 25640155), (95, 20512124), (146, 13346930), (190, 10256062), (199, 9792220), (292, 6673465), (353, 5520260), (365, 5338772), (380, 5128031), (398, 4896110), (706, 2760130), (730, 2669386), (796, 2448055), (995, 1958444), (1387, 1404940), (1412, 1380065), (1460, 1334693), (1765, 1104052), (1990, 979222), (2774, 702470), (3530, 552026), (3781, 515380), (3980, 489611), (5548, 351235), (6707, 290540), (6935, 280988), (7060, 276013), (7562, 257690), (13414, 145270), (13870, 140494), (14527, 134140), (15124, 128845), (18905, 103076), (25769, 75620), (26828, 72635), (27740, 70247), (29054, 67070), (33535, 58108), (37810, 51538)]