18767840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1324

約数の個数: 96

約数和(自身を含む): 54613440

約数和(自身を除く): 35845600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1289, 1456, 1820, 2080, 2578, 2912, 3640, 5156, 6445, 7280, 9023, 10312, 12890, 14560, 16757, 18046, 20624, 25780, 33514, 36092, 41248, 45115, 51560, 67028, 72184, 83785, 90230, 103120, 117299, 134056, 144368, 167570, 180460, 206240, 234598, 268112, 288736, 335140, 360920, 469196, 536224, 586495, 670280, 721840, 938392, 1172990, 1340560, 1443680, 1876784, 2345980, 2681120, 3753568, 4691960, 9383920, 18767840]

約数ペア:

[(1, 18767840), (2, 9383920), (4, 4691960), (5, 3753568), (7, 2681120), (8, 2345980), (10, 1876784), (13, 1443680), (14, 1340560), (16, 1172990), (20, 938392), (26, 721840), (28, 670280), (32, 586495), (35, 536224), (40, 469196), (52, 360920), (56, 335140), (65, 288736), (70, 268112), (80, 234598), (91, 206240), (104, 180460), (112, 167570), (130, 144368), (140, 134056), (160, 117299), (182, 103120), (208, 90230), (224, 83785), (260, 72184), (280, 67028), (364, 51560), (416, 45115), (455, 41248), (520, 36092), (560, 33514), (728, 25780), (910, 20624), (1040, 18046), (1120, 16757), (1289, 14560), (1456, 12890), (1820, 10312), (2080, 9023), (2578, 7280), (2912, 6445), (3640, 5156)]