2688895720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{64451}}^1$

素因数の和:64618

約数の個数: 64

約数和(自身を含む): 6960816000

約数和(自身を除く): 4271920280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 2086, 2980, 4172, 5215, 5960, 8344, 10430, 20860, 41720, 64451, 128902, 257804, 322255, 451157, 515608, 644510, 902314, 1289020, 1804628, 2255785, 2578040, 3609256, 4511570, 9023140, 9603199, 18046280, 19206398, 38412796, 48015995, 67222393, 76825592, 96031990, 134444786, 192063980, 268889572, 336111965, 384127960, 537779144, 672223930, 1344447860, 2688895720]

約数ペア:

[(1, 2688895720), (2, 1344447860), (4, 672223930), (5, 537779144), (7, 384127960), (8, 336111965), (10, 268889572), (14, 192063980), (20, 134444786), (28, 96031990), (35, 76825592), (40, 67222393), (56, 48015995), (70, 38412796), (140, 19206398), (149, 18046280), (280, 9603199), (298, 9023140), (596, 4511570), (745, 3609256), (1043, 2578040), (1192, 2255785), (1490, 1804628), (2086, 1289020), (2980, 902314), (4172, 644510), (5215, 515608), (5960, 451157), (8344, 322255), (10430, 257804), (20860, 128902), (41720, 64451)]