397215896

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 982593360

約数和(自身を除く): 585377464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 61, 62, 77, 88, 121, 122, 124, 154, 217, 242, 244, 248, 308, 341, 427, 434, 484, 488, 616, 671, 682, 847, 854, 868, 961, 968, 1342, 1364, 1694, 1708, 1736, 1891, 1922, 2387, 2684, 2728, 3388, 3416, 3751, 3782, 3844, 4697, 4774, 5368, 6727, 6776, 7381, 7502, 7564, 7688, 9394, 9548, 10571, 13237, 13454, 14762, 15004, 15128, 18788, 19096, 20801, 21142, 26257, 26474, 26908, 29524, 30008, 37576, 41602, 42284, 51667, 52514, 52948, 53816, 58621, 59048, 73997, 83204, 84568, 103334, 105028, 105896, 116281, 117242, 145607, 147994, 166408, 206668, 210056, 228811, 232562, 234484, 291214, 295988, 410347, 413336, 457622, 465124, 468968, 582428, 591976, 644831, 813967, 820694, 915244, 930248, 1164856, 1289662, 1601677, 1627934, 1641388, 1830488, 2579324, 3203354, 3255868, 3282776, 4513817, 5158648, 6406708, 6511736, 7093141, 9027634, 12813416, 14186282, 18055268, 28372564, 36110536, 49651987, 56745128, 99303974, 198607948, 397215896]

約数ペア:

[(1, 397215896), (2, 198607948), (4, 99303974), (7, 56745128), (8, 49651987), (11, 36110536), (14, 28372564), (22, 18055268), (28, 14186282), (31, 12813416), (44, 9027634), (56, 7093141), (61, 6511736), (62, 6406708), (77, 5158648), (88, 4513817), (121, 3282776), (122, 3255868), (124, 3203354), (154, 2579324), (217, 1830488), (242, 1641388), (244, 1627934), (248, 1601677), (308, 1289662), (341, 1164856), (427, 930248), (434, 915244), (484, 820694), (488, 813967), (616, 644831), (671, 591976), (682, 582428), (847, 468968), (854, 465124), (868, 457622), (961, 413336), (968, 410347), (1342, 295988), (1364, 291214), (1694, 234484), (1708, 232562), (1736, 228811), (1891, 210056), (1922, 206668), (2387, 166408), (2684, 147994), (2728, 145607), (3388, 117242), (3416, 116281), (3751, 105896), (3782, 105028), (3844, 103334), (4697, 84568), (4774, 83204), (5368, 73997), (6727, 59048), (6776, 58621), (7381, 53816), (7502, 52948), (7564, 52514), (7688, 51667), (9394, 42284), (9548, 41602), (10571, 37576), (13237, 30008), (13454, 29524), (14762, 26908), (15004, 26474), (15128, 26257), (18788, 21142), (19096, 20801)]