399861280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1$

素因数の和:1011

約数の個数: 192

約数和(自身を含む): 1204035840

約数和(自身を除く): 804174560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 40, 52, 56, 58, 65, 70, 80, 91, 104, 112, 116, 130, 140, 145, 160, 182, 203, 208, 224, 232, 260, 280, 290, 364, 377, 406, 416, 455, 464, 520, 560, 580, 728, 754, 812, 910, 928, 947, 1015, 1040, 1120, 1160, 1456, 1508, 1624, 1820, 1885, 1894, 2030, 2080, 2320, 2639, 2912, 3016, 3248, 3640, 3770, 3788, 4060, 4640, 4735, 5278, 6032, 6496, 6629, 7280, 7540, 7576, 8120, 9470, 10556, 12064, 12311, 13195, 13258, 14560, 15080, 15152, 16240, 18940, 21112, 24622, 26390, 26516, 27463, 30160, 30304, 32480, 33145, 37880, 42224, 49244, 52780, 53032, 54926, 60320, 61555, 66290, 75760, 84448, 86177, 98488, 105560, 106064, 109852, 123110, 132580, 137315, 151520, 172354, 192241, 196976, 211120, 212128, 219704, 246220, 265160, 274630, 344708, 357019, 384482, 393952, 422240, 430885, 439408, 492440, 530320, 549260, 689416, 714038, 768964, 861770, 878816, 961205, 984880, 1060640, 1098520, 1378832, 1428076, 1537928, 1723540, 1785095, 1922410, 1969760, 2197040, 2499133, 2757664, 2856152, 3075856, 3447080, 3570190, 3844820, 4394080, 4998266, 5712304, 6151712, 6894160, 7140380, 7689640, 9996532, 11424608, 12495665, 13788320, 14280760, 15379280, 19993064, 24991330, 28561520, 30758560, 39986128, 49982660, 57123040, 79972256, 99965320, 199930640, 399861280]

約数ペア:

[(1, 399861280), (2, 199930640), (4, 99965320), (5, 79972256), (7, 57123040), (8, 49982660), (10, 39986128), (13, 30758560), (14, 28561520), (16, 24991330), (20, 19993064), (26, 15379280), (28, 14280760), (29, 13788320), (32, 12495665), (35, 11424608), (40, 9996532), (52, 7689640), (56, 7140380), (58, 6894160), (65, 6151712), (70, 5712304), (80, 4998266), (91, 4394080), (104, 3844820), (112, 3570190), (116, 3447080), (130, 3075856), (140, 2856152), (145, 2757664), (160, 2499133), (182, 2197040), (203, 1969760), (208, 1922410), (224, 1785095), (232, 1723540), (260, 1537928), (280, 1428076), (290, 1378832), (364, 1098520), (377, 1060640), (406, 984880), (416, 961205), (455, 878816), (464, 861770), (520, 768964), (560, 714038), (580, 689416), (728, 549260), (754, 530320), (812, 492440), (910, 439408), (928, 430885), (947, 422240), (1015, 393952), (1040, 384482), (1120, 357019), (1160, 344708), (1456, 274630), (1508, 265160), (1624, 246220), (1820, 219704), (1885, 212128), (1894, 211120), (2030, 196976), (2080, 192241), (2320, 172354), (2639, 151520), (2912, 137315), (3016, 132580), (3248, 123110), (3640, 109852), (3770, 106064), (3788, 105560), (4060, 98488), (4640, 86177), (4735, 84448), (5278, 75760), (6032, 66290), (6496, 61555), (6629, 60320), (7280, 54926), (7540, 53032), (7576, 52780), (8120, 49244), (9470, 42224), (10556, 37880), (12064, 33145), (12311, 32480), (13195, 30304), (13258, 30160), (14560, 27463), (15080, 26516), (15152, 26390), (16240, 24622), (18940, 21112)]