1290893000

素因数分解:

$2^3\times 5^3\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:448

約数の個数: 128

約数和(自身を含む): 3137097600

約数和(自身を除く): 1846204600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 125, 139, 148, 185, 200, 250, 251, 278, 296, 370, 500, 502, 556, 695, 740, 925, 1000, 1004, 1112, 1255, 1390, 1480, 1850, 2008, 2510, 2780, 3475, 3700, 4625, 5020, 5143, 5560, 6275, 6950, 7400, 9250, 9287, 10040, 10286, 12550, 13900, 17375, 18500, 18574, 20572, 25100, 25715, 27800, 31375, 34750, 34889, 37000, 37148, 41144, 46435, 50200, 51430, 62750, 69500, 69778, 74296, 92870, 102860, 125500, 128575, 139000, 139556, 174445, 185740, 205720, 232175, 251000, 257150, 279112, 348890, 371480, 464350, 514300, 642875, 697780, 872225, 928700, 1028600, 1160875, 1285750, 1290893, 1395560, 1744450, 1857400, 2321750, 2571500, 2581786, 3488900, 4361125, 4643500, 5143000, 5163572, 6454465, 6977800, 8722250, 9287000, 10327144, 12908930, 17444500, 25817860, 32272325, 34889000, 51635720, 64544650, 129089300, 161361625, 258178600, 322723250, 645446500, 1290893000]

約数ペア:

[(1, 1290893000), (2, 645446500), (4, 322723250), (5, 258178600), (8, 161361625), (10, 129089300), (20, 64544650), (25, 51635720), (37, 34889000), (40, 32272325), (50, 25817860), (74, 17444500), (100, 12908930), (125, 10327144), (139, 9287000), (148, 8722250), (185, 6977800), (200, 6454465), (250, 5163572), (251, 5143000), (278, 4643500), (296, 4361125), (370, 3488900), (500, 2581786), (502, 2571500), (556, 2321750), (695, 1857400), (740, 1744450), (925, 1395560), (1000, 1290893), (1004, 1285750), (1112, 1160875), (1255, 1028600), (1390, 928700), (1480, 872225), (1850, 697780), (2008, 642875), (2510, 514300), (2780, 464350), (3475, 371480), (3700, 348890), (4625, 279112), (5020, 257150), (5143, 251000), (5560, 232175), (6275, 205720), (6950, 185740), (7400, 174445), (9250, 139556), (9287, 139000), (10040, 128575), (10286, 125500), (12550, 102860), (13900, 92870), (17375, 74296), (18500, 69778), (18574, 69500), (20572, 62750), (25100, 51430), (25715, 50200), (27800, 46435), (31375, 41144), (34750, 37148), (34889, 37000)]