280515653740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{443}}^1\times {\mathrm{8179}}^1$

素因数の和:8724

約数の個数: 144

約数和(自身を含む): 695585318400

約数和(自身を除く): 415069664660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 443, 490, 553, 790, 886, 980, 1106, 1580, 1772, 2212, 2215, 2765, 3101, 3871, 4430, 5530, 6202, 7742, 8179, 8860, 11060, 12404, 15484, 15505, 16358, 19355, 21707, 31010, 32716, 34997, 38710, 40895, 43414, 57253, 62020, 69994, 77420, 81790, 86828, 108535, 114506, 139988, 163580, 174985, 217070, 229012, 244979, 286265, 349970, 400771, 434140, 489958, 572530, 646141, 699940, 801542, 979916, 1145060, 1224895, 1292282, 1603084, 1714853, 2003855, 2449790, 2584564, 3230705, 3429706, 3623297, 4007710, 4522987, 4899580, 6461410, 6859412, 7246594, 8015420, 8574265, 9045974, 12922820, 14493188, 17148530, 18091948, 18116485, 22614935, 25363079, 31660909, 34297060, 36232970, 45229870, 50726158, 63321818, 72465940, 90459740, 101452316, 126643636, 126815395, 158304545, 177541553, 253630790, 286240463, 316609090, 355083106, 507261580, 572480926, 633218180, 710166212, 887707765, 1144961852, 1431202315, 1775415530, 2003683241, 2862404630, 3550831060, 4007366482, 5724809260, 8014732964, 10018416205, 14025782687, 20036832410, 28051565374, 40073664820, 56103130748, 70128913435, 140257826870, 280515653740]

約数ペア:

[(1, 280515653740), (2, 140257826870), (4, 70128913435), (5, 56103130748), (7, 40073664820), (10, 28051565374), (14, 20036832410), (20, 14025782687), (28, 10018416205), (35, 8014732964), (49, 5724809260), (70, 4007366482), (79, 3550831060), (98, 2862404630), (140, 2003683241), (158, 1775415530), (196, 1431202315), (245, 1144961852), (316, 887707765), (395, 710166212), (443, 633218180), (490, 572480926), (553, 507261580), (790, 355083106), (886, 316609090), (980, 286240463), (1106, 253630790), (1580, 177541553), (1772, 158304545), (2212, 126815395), (2215, 126643636), (2765, 101452316), (3101, 90459740), (3871, 72465940), (4430, 63321818), (5530, 50726158), (6202, 45229870), (7742, 36232970), (8179, 34297060), (8860, 31660909), (11060, 25363079), (12404, 22614935), (15484, 18116485), (15505, 18091948), (16358, 17148530), (19355, 14493188), (21707, 12922820), (31010, 9045974), (32716, 8574265), (34997, 8015420), (38710, 7246594), (40895, 6859412), (43414, 6461410), (57253, 4899580), (62020, 4522987), (69994, 4007710), (77420, 3623297), (81790, 3429706), (86828, 3230705), (108535, 2584564), (114506, 2449790), (139988, 2003855), (163580, 1714853), (174985, 1603084), (217070, 1292282), (229012, 1224895), (244979, 1145060), (286265, 979916), (349970, 801542), (400771, 699940), (434140, 646141), (489958, 572530)]