247404780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{21817}}^1$

素因数の和:21845

約数の個数: 120

約数和(自身を含む): 887032608

約数和(自身を除く): 639627828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 11340, 21817, 43634, 65451, 87268, 109085, 130902, 152719, 196353, 218170, 261804, 305438, 327255, 392706, 436340, 458157, 589059, 610876, 654510, 763595, 785412, 916314, 981765, 1178118, 1309020, 1374471, 1527190, 1767177, 1832628, 1963530, 2290785, 2356236, 2748942, 2945295, 3054380, 3534354, 3927060, 4123413, 4581570, 5497884, 5890590, 6872355, 7068708, 8246826, 8835885, 9163140, 11781180, 12370239, 13744710, 16493652, 17671770, 20617065, 24740478, 27489420, 35343540, 41234130, 49480956, 61851195, 82468260, 123702390, 247404780]

約数ペア:

[(1, 247404780), (2, 123702390), (3, 82468260), (4, 61851195), (5, 49480956), (6, 41234130), (7, 35343540), (9, 27489420), (10, 24740478), (12, 20617065), (14, 17671770), (15, 16493652), (18, 13744710), (20, 12370239), (21, 11781180), (27, 9163140), (28, 8835885), (30, 8246826), (35, 7068708), (36, 6872355), (42, 5890590), (45, 5497884), (54, 4581570), (60, 4123413), (63, 3927060), (70, 3534354), (81, 3054380), (84, 2945295), (90, 2748942), (105, 2356236), (108, 2290785), (126, 1963530), (135, 1832628), (140, 1767177), (162, 1527190), (180, 1374471), (189, 1309020), (210, 1178118), (252, 981765), (270, 916314), (315, 785412), (324, 763595), (378, 654510), (405, 610876), (420, 589059), (540, 458157), (567, 436340), (630, 392706), (756, 327255), (810, 305438), (945, 261804), (1134, 218170), (1260, 196353), (1620, 152719), (1890, 130902), (2268, 109085), (2835, 87268), (3780, 65451), (5670, 43634), (11340, 21817)]