181218440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{619}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 440596800

約数和(自身を除く): 259378360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 563, 619, 1126, 1238, 2252, 2476, 2815, 3095, 4504, 4952, 5630, 6190, 7319, 8047, 11260, 12380, 14638, 16094, 22520, 24760, 29276, 32188, 36595, 40235, 58552, 64376, 73190, 80470, 146380, 160940, 292760, 321880, 348497, 696994, 1393988, 1742485, 2787976, 3484970, 4530461, 6969940, 9060922, 13939880, 18121844, 22652305, 36243688, 45304610, 90609220, 181218440]

約数ペア:

[(1, 181218440), (2, 90609220), (4, 45304610), (5, 36243688), (8, 22652305), (10, 18121844), (13, 13939880), (20, 9060922), (26, 6969940), (40, 4530461), (52, 3484970), (65, 2787976), (104, 1742485), (130, 1393988), (260, 696994), (520, 348497), (563, 321880), (619, 292760), (1126, 160940), (1238, 146380), (2252, 80470), (2476, 73190), (2815, 64376), (3095, 58552), (4504, 40235), (4952, 36595), (5630, 32188), (6190, 29276), (7319, 24760), (8047, 22520), (11260, 16094), (12380, 14638)]