2005680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 6365664

約数和(自身を除く): 4359984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 137, 183, 240, 244, 274, 305, 366, 411, 488, 548, 610, 685, 732, 822, 915, 976, 1096, 1220, 1370, 1464, 1644, 1830, 2055, 2192, 2440, 2740, 2928, 3288, 3660, 4110, 4880, 5480, 6576, 7320, 8220, 8357, 10960, 14640, 16440, 16714, 25071, 32880, 33428, 41785, 50142, 66856, 83570, 100284, 125355, 133712, 167140, 200568, 250710, 334280, 401136, 501420, 668560, 1002840, 2005680]

約数ペア:

[(1, 2005680), (2, 1002840), (3, 668560), (4, 501420), (5, 401136), (6, 334280), (8, 250710), (10, 200568), (12, 167140), (15, 133712), (16, 125355), (20, 100284), (24, 83570), (30, 66856), (40, 50142), (48, 41785), (60, 33428), (61, 32880), (80, 25071), (120, 16714), (122, 16440), (137, 14640), (183, 10960), (240, 8357), (244, 8220), (274, 7320), (305, 6576), (366, 5480), (411, 4880), (488, 4110), (548, 3660), (610, 3288), (685, 2928), (732, 2740), (822, 2440), (915, 2192), (976, 2055), (1096, 1830), (1220, 1644), (1370, 1464)]