256460640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:681

約数の個数: 192

約数和(自身を含む): 872980416

約数和(自身を除く): 616519776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 53, 60, 68, 80, 85, 96, 102, 106, 120, 136, 159, 160, 170, 204, 212, 240, 255, 265, 272, 318, 340, 408, 424, 480, 510, 530, 544, 593, 636, 680, 795, 816, 848, 901, 1020, 1060, 1186, 1272, 1360, 1590, 1632, 1696, 1779, 1802, 2040, 2120, 2372, 2544, 2703, 2720, 2965, 3180, 3558, 3604, 4080, 4240, 4505, 4744, 5088, 5406, 5930, 6360, 7116, 7208, 8160, 8480, 8895, 9010, 9488, 10081, 10812, 11860, 12720, 13515, 14232, 14416, 17790, 18020, 18976, 20162, 21624, 23720, 25440, 27030, 28464, 28832, 30243, 31429, 35580, 36040, 40324, 43248, 47440, 50405, 54060, 56928, 60486, 62858, 71160, 72080, 80648, 86496, 94287, 94880, 100810, 108120, 120972, 125716, 142320, 144160, 151215, 157145, 161296, 188574, 201620, 216240, 241944, 251432, 284640, 302430, 314290, 322592, 377148, 403240, 432480, 471435, 483888, 502864, 534293, 604860, 628580, 754296, 806480, 942870, 967776, 1005728, 1068586, 1209720, 1257160, 1508592, 1602879, 1612960, 1885740, 2137172, 2419440, 2514320, 2671465, 3017184, 3205758, 3771480, 4274344, 4838880, 5028640, 5342930, 6411516, 7542960, 8014395, 8548688, 10685860, 12823032, 15085920, 16028790, 17097376, 21371720, 25646064, 32057580, 42743440, 51292128, 64115160, 85486880, 128230320, 256460640]

約数ペア:

[(1, 256460640), (2, 128230320), (3, 85486880), (4, 64115160), (5, 51292128), (6, 42743440), (8, 32057580), (10, 25646064), (12, 21371720), (15, 17097376), (16, 16028790), (17, 15085920), (20, 12823032), (24, 10685860), (30, 8548688), (32, 8014395), (34, 7542960), (40, 6411516), (48, 5342930), (51, 5028640), (53, 4838880), (60, 4274344), (68, 3771480), (80, 3205758), (85, 3017184), (96, 2671465), (102, 2514320), (106, 2419440), (120, 2137172), (136, 1885740), (159, 1612960), (160, 1602879), (170, 1508592), (204, 1257160), (212, 1209720), (240, 1068586), (255, 1005728), (265, 967776), (272, 942870), (318, 806480), (340, 754296), (408, 628580), (424, 604860), (480, 534293), (510, 502864), (530, 483888), (544, 471435), (593, 432480), (636, 403240), (680, 377148), (795, 322592), (816, 314290), (848, 302430), (901, 284640), (1020, 251432), (1060, 241944), (1186, 216240), (1272, 201620), (1360, 188574), (1590, 161296), (1632, 157145), (1696, 151215), (1779, 144160), (1802, 142320), (2040, 125716), (2120, 120972), (2372, 108120), (2544, 100810), (2703, 94880), (2720, 94287), (2965, 86496), (3180, 80648), (3558, 72080), (3604, 71160), (4080, 62858), (4240, 60486), (4505, 56928), (4744, 54060), (5088, 50405), (5406, 47440), (5930, 43248), (6360, 40324), (7116, 36040), (7208, 35580), (8160, 31429), (8480, 30243), (8895, 28832), (9010, 28464), (9488, 27030), (10081, 25440), (10812, 23720), (11860, 21624), (12720, 20162), (13515, 18976), (14232, 18020), (14416, 17790)]