281280870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:787

約数の個数: 128

約数和(自身を含む): 815431680

約数和(自身を除く): 534150810

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 127, 130, 135, 195, 234, 254, 270, 351, 381, 390, 585, 631, 635, 702, 762, 1143, 1170, 1262, 1270, 1651, 1755, 1893, 1905, 2286, 3155, 3302, 3429, 3510, 3786, 3810, 4953, 5679, 5715, 6310, 6858, 8203, 8255, 9465, 9906, 11358, 11430, 14859, 16406, 16510, 17037, 17145, 18930, 24609, 24765, 28395, 29718, 34074, 34290, 41015, 44577, 49218, 49530, 56790, 73827, 74295, 80137, 82030, 85185, 89154, 123045, 147654, 148590, 160274, 170370, 221481, 222885, 240411, 246090, 369135, 400685, 442962, 445770, 480822, 721233, 738270, 801370, 1041781, 1107405, 1202055, 1442466, 2083562, 2163699, 2214810, 2404110, 3125343, 3606165, 4327398, 5208905, 6250686, 7212330, 9376029, 10417810, 10818495, 15626715, 18752058, 21636990, 28128087, 31253430, 46880145, 56256174, 93760290, 140640435, 281280870]

約数ペア:

[(1, 281280870), (2, 140640435), (3, 93760290), (5, 56256174), (6, 46880145), (9, 31253430), (10, 28128087), (13, 21636990), (15, 18752058), (18, 15626715), (26, 10818495), (27, 10417810), (30, 9376029), (39, 7212330), (45, 6250686), (54, 5208905), (65, 4327398), (78, 3606165), (90, 3125343), (117, 2404110), (127, 2214810), (130, 2163699), (135, 2083562), (195, 1442466), (234, 1202055), (254, 1107405), (270, 1041781), (351, 801370), (381, 738270), (390, 721233), (585, 480822), (631, 445770), (635, 442962), (702, 400685), (762, 369135), (1143, 246090), (1170, 240411), (1262, 222885), (1270, 221481), (1651, 170370), (1755, 160274), (1893, 148590), (1905, 147654), (2286, 123045), (3155, 89154), (3302, 85185), (3429, 82030), (3510, 80137), (3786, 74295), (3810, 73827), (4953, 56790), (5679, 49530), (5715, 49218), (6310, 44577), (6858, 41015), (8203, 34290), (8255, 34074), (9465, 29718), (9906, 28395), (11358, 24765), (11430, 24609), (14859, 18930), (16406, 17145), (16510, 17037)]