256347240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3877}}^1$

素因数の和:3939

約数の個数: 128

約数和(自身を含む): 837648000

約数和(自身を除く): 581300760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 29, 30, 38, 40, 57, 58, 60, 76, 87, 95, 114, 116, 120, 145, 152, 174, 190, 228, 232, 285, 290, 348, 380, 435, 456, 551, 570, 580, 696, 760, 870, 1102, 1140, 1160, 1653, 1740, 2204, 2280, 2755, 3306, 3480, 3877, 4408, 5510, 6612, 7754, 8265, 11020, 11631, 13224, 15508, 16530, 19385, 22040, 23262, 31016, 33060, 38770, 46524, 58155, 66120, 73663, 77540, 93048, 112433, 116310, 147326, 155080, 220989, 224866, 232620, 294652, 337299, 368315, 441978, 449732, 465240, 562165, 589304, 674598, 736630, 883956, 899464, 1104945, 1124330, 1349196, 1473260, 1686495, 1767912, 2136227, 2209890, 2248660, 2698392, 2946520, 3372990, 4272454, 4419780, 4497320, 6408681, 6745980, 8544908, 8839560, 10681135, 12817362, 13491960, 17089816, 21362270, 25634724, 32043405, 42724540, 51269448, 64086810, 85449080, 128173620, 256347240]

約数ペア:

[(1, 256347240), (2, 128173620), (3, 85449080), (4, 64086810), (5, 51269448), (6, 42724540), (8, 32043405), (10, 25634724), (12, 21362270), (15, 17089816), (19, 13491960), (20, 12817362), (24, 10681135), (29, 8839560), (30, 8544908), (38, 6745980), (40, 6408681), (57, 4497320), (58, 4419780), (60, 4272454), (76, 3372990), (87, 2946520), (95, 2698392), (114, 2248660), (116, 2209890), (120, 2136227), (145, 1767912), (152, 1686495), (174, 1473260), (190, 1349196), (228, 1124330), (232, 1104945), (285, 899464), (290, 883956), (348, 736630), (380, 674598), (435, 589304), (456, 562165), (551, 465240), (570, 449732), (580, 441978), (696, 368315), (760, 337299), (870, 294652), (1102, 232620), (1140, 224866), (1160, 220989), (1653, 155080), (1740, 147326), (2204, 116310), (2280, 112433), (2755, 93048), (3306, 77540), (3480, 73663), (3877, 66120), (4408, 58155), (5510, 46524), (6612, 38770), (7754, 33060), (8265, 31016), (11020, 23262), (11631, 22040), (13224, 19385), (15508, 16530)]