281478960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{55849}}^1$

素因数の和:55875

約数の個数: 120

約数和(自身を含む): 1080362400

約数和(自身を除く): 798883440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 55849, 111698, 167547, 223396, 279245, 335094, 390943, 446792, 502641, 558490, 670188, 781886, 837735, 893584, 1005282, 1116980, 1172829, 1340376, 1563772, 1675470, 1954715, 2010564, 2233960, 2345658, 2513205, 2680752, 3127544, 3350940, 3518487, 3909430, 4021128, 4467920, 4691316, 5026410, 5864145, 6255088, 6701880, 7036974, 7818860, 8042256, 9382632, 10052820, 11728290, 13403760, 14073948, 15637720, 17592435, 18765264, 20105640, 23456580, 28147896, 31275440, 35184870, 40211280, 46913160, 56295792, 70369740, 93826320, 140739480, 281478960]

約数ペア:

[(1, 281478960), (2, 140739480), (3, 93826320), (4, 70369740), (5, 56295792), (6, 46913160), (7, 40211280), (8, 35184870), (9, 31275440), (10, 28147896), (12, 23456580), (14, 20105640), (15, 18765264), (16, 17592435), (18, 15637720), (20, 14073948), (21, 13403760), (24, 11728290), (28, 10052820), (30, 9382632), (35, 8042256), (36, 7818860), (40, 7036974), (42, 6701880), (45, 6255088), (48, 5864145), (56, 5026410), (60, 4691316), (63, 4467920), (70, 4021128), (72, 3909430), (80, 3518487), (84, 3350940), (90, 3127544), (105, 2680752), (112, 2513205), (120, 2345658), (126, 2233960), (140, 2010564), (144, 1954715), (168, 1675470), (180, 1563772), (210, 1340376), (240, 1172829), (252, 1116980), (280, 1005282), (315, 893584), (336, 837735), (360, 781886), (420, 670188), (504, 558490), (560, 502641), (630, 446792), (720, 390943), (840, 335094), (1008, 279245), (1260, 223396), (1680, 167547), (2520, 111698), (5040, 55849)]