1981320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 6912000

約数和(自身を除く): 4930680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 79, 88, 95, 110, 114, 120, 132, 152, 158, 165, 190, 209, 220, 228, 237, 264, 285, 316, 330, 380, 395, 418, 440, 456, 474, 570, 627, 632, 660, 760, 790, 836, 869, 948, 1045, 1140, 1185, 1254, 1320, 1501, 1580, 1672, 1738, 1896, 2090, 2280, 2370, 2508, 2607, 3002, 3135, 3160, 3476, 4180, 4345, 4503, 4740, 5016, 5214, 6004, 6270, 6952, 7505, 8360, 8690, 9006, 9480, 10428, 12008, 12540, 13035, 15010, 16511, 17380, 18012, 20856, 22515, 25080, 26070, 30020, 33022, 34760, 36024, 45030, 49533, 52140, 60040, 66044, 82555, 90060, 99066, 104280, 132088, 165110, 180120, 198132, 247665, 330220, 396264, 495330, 660440, 990660, 1981320]

約数ペア:

[(1, 1981320), (2, 990660), (3, 660440), (4, 495330), (5, 396264), (6, 330220), (8, 247665), (10, 198132), (11, 180120), (12, 165110), (15, 132088), (19, 104280), (20, 99066), (22, 90060), (24, 82555), (30, 66044), (33, 60040), (38, 52140), (40, 49533), (44, 45030), (55, 36024), (57, 34760), (60, 33022), (66, 30020), (76, 26070), (79, 25080), (88, 22515), (95, 20856), (110, 18012), (114, 17380), (120, 16511), (132, 15010), (152, 13035), (158, 12540), (165, 12008), (190, 10428), (209, 9480), (220, 9006), (228, 8690), (237, 8360), (264, 7505), (285, 6952), (316, 6270), (330, 6004), (380, 5214), (395, 5016), (418, 4740), (440, 4503), (456, 4345), (474, 4180), (570, 3476), (627, 3160), (632, 3135), (660, 3002), (760, 2607), (790, 2508), (836, 2370), (869, 2280), (948, 2090), (1045, 1896), (1140, 1738), (1185, 1672), (1254, 1580), (1320, 1501)]