28965160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 79626240

約数和(自身を除く): 50661080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 47, 56, 62, 70, 71, 94, 124, 140, 142, 155, 188, 217, 235, 248, 280, 284, 310, 329, 355, 376, 434, 470, 497, 568, 620, 658, 710, 868, 940, 994, 1085, 1240, 1316, 1420, 1457, 1645, 1736, 1880, 1988, 2170, 2201, 2485, 2632, 2840, 2914, 3290, 3337, 3976, 4340, 4402, 4970, 5828, 6580, 6674, 7285, 8680, 8804, 9940, 10199, 11005, 11656, 13160, 13348, 14570, 15407, 16685, 17608, 19880, 20398, 22010, 23359, 26696, 29140, 30814, 33370, 40796, 44020, 46718, 50995, 58280, 61628, 66740, 77035, 81592, 88040, 93436, 101990, 103447, 116795, 123256, 133480, 154070, 186872, 203980, 206894, 233590, 308140, 407960, 413788, 467180, 517235, 616280, 724129, 827576, 934360, 1034470, 1448258, 2068940, 2896516, 3620645, 4137880, 5793032, 7241290, 14482580, 28965160]

約数ペア:

[(1, 28965160), (2, 14482580), (4, 7241290), (5, 5793032), (7, 4137880), (8, 3620645), (10, 2896516), (14, 2068940), (20, 1448258), (28, 1034470), (31, 934360), (35, 827576), (40, 724129), (47, 616280), (56, 517235), (62, 467180), (70, 413788), (71, 407960), (94, 308140), (124, 233590), (140, 206894), (142, 203980), (155, 186872), (188, 154070), (217, 133480), (235, 123256), (248, 116795), (280, 103447), (284, 101990), (310, 93436), (329, 88040), (355, 81592), (376, 77035), (434, 66740), (470, 61628), (497, 58280), (568, 50995), (620, 46718), (658, 44020), (710, 40796), (868, 33370), (940, 30814), (994, 29140), (1085, 26696), (1240, 23359), (1316, 22010), (1420, 20398), (1457, 19880), (1645, 17608), (1736, 16685), (1880, 15407), (1988, 14570), (2170, 13348), (2201, 13160), (2485, 11656), (2632, 11005), (2840, 10199), (2914, 9940), (3290, 8804), (3337, 8680), (3976, 7285), (4340, 6674), (4402, 6580), (4970, 5828)]