666901900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1223}}^1$

素因数の和:1304

約数の個数: 144

約数和(自身を含む): 1784885760

約数和(自身を除く): 1117983860

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 41, 50, 70, 76, 82, 95, 100, 133, 140, 164, 175, 190, 205, 266, 287, 350, 380, 410, 475, 532, 574, 665, 700, 779, 820, 950, 1025, 1148, 1223, 1330, 1435, 1558, 1900, 2050, 2446, 2660, 2870, 3116, 3325, 3895, 4100, 4892, 5453, 5740, 6115, 6650, 7175, 7790, 8561, 10906, 12230, 13300, 14350, 15580, 17122, 19475, 21812, 23237, 24460, 27265, 28700, 30575, 34244, 38950, 42805, 46474, 50143, 54530, 61150, 77900, 85610, 92948, 100286, 109060, 116185, 122300, 136325, 162659, 171220, 200572, 214025, 232370, 250715, 272650, 325318, 351001, 428050, 464740, 501430, 545300, 580925, 650636, 702002, 813295, 856100, 952717, 1002860, 1161850, 1253575, 1404004, 1626590, 1755005, 1905434, 2323700, 2507150, 3253180, 3510010, 3810868, 4066475, 4763585, 5014300, 6669019, 7020020, 8132950, 8775025, 9527170, 13338038, 16265900, 17550050, 19054340, 23817925, 26676076, 33345095, 35100100, 47635850, 66690190, 95271700, 133380380, 166725475, 333450950, 666901900]

約数ペア:

[(1, 666901900), (2, 333450950), (4, 166725475), (5, 133380380), (7, 95271700), (10, 66690190), (14, 47635850), (19, 35100100), (20, 33345095), (25, 26676076), (28, 23817925), (35, 19054340), (38, 17550050), (41, 16265900), (50, 13338038), (70, 9527170), (76, 8775025), (82, 8132950), (95, 7020020), (100, 6669019), (133, 5014300), (140, 4763585), (164, 4066475), (175, 3810868), (190, 3510010), (205, 3253180), (266, 2507150), (287, 2323700), (350, 1905434), (380, 1755005), (410, 1626590), (475, 1404004), (532, 1253575), (574, 1161850), (665, 1002860), (700, 952717), (779, 856100), (820, 813295), (950, 702002), (1025, 650636), (1148, 580925), (1223, 545300), (1330, 501430), (1435, 464740), (1558, 428050), (1900, 351001), (2050, 325318), (2446, 272650), (2660, 250715), (2870, 232370), (3116, 214025), (3325, 200572), (3895, 171220), (4100, 162659), (4892, 136325), (5453, 122300), (5740, 116185), (6115, 109060), (6650, 100286), (7175, 92948), (7790, 85610), (8561, 77900), (10906, 61150), (12230, 54530), (13300, 50143), (14350, 46474), (15580, 42805), (17122, 38950), (19475, 34244), (21812, 30575), (23237, 28700), (24460, 27265)]