2971980

素因数分解:

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

素因数の和:124

約数の個数: 144

約数和(自身を含む): 10483200

約数和(自身を除く): 7511220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 79, 90, 95, 99, 110, 114, 132, 158, 165, 171, 180, 190, 198, 209, 220, 228, 237, 285, 316, 330, 342, 380, 395, 396, 418, 474, 495, 570, 627, 660, 684, 711, 790, 836, 855, 869, 948, 990, 1045, 1140, 1185, 1254, 1422, 1501, 1580, 1710, 1738, 1881, 1980, 2090, 2370, 2508, 2607, 2844, 3002, 3135, 3420, 3476, 3555, 3762, 4180, 4345, 4503, 4740, 5214, 6004, 6270, 7110, 7505, 7524, 7821, 8690, 9006, 9405, 10428, 12540, 13035, 13509, 14220, 15010, 15642, 16511, 17380, 18012, 18810, 22515, 26070, 27018, 30020, 31284, 33022, 37620, 39105, 45030, 49533, 52140, 54036, 66044, 67545, 78210, 82555, 90060, 99066, 135090, 148599, 156420, 165110, 198132, 247665, 270180, 297198, 330220, 495330, 594396, 742995, 990660, 1485990, 2971980]

約数ペア:

[(1, 2971980), (2, 1485990), (3, 990660), (4, 742995), (5, 594396), (6, 495330), (9, 330220), (10, 297198), (11, 270180), (12, 247665), (15, 198132), (18, 165110), (19, 156420), (20, 148599), (22, 135090), (30, 99066), (33, 90060), (36, 82555), (38, 78210), (44, 67545), (45, 66044), (55, 54036), (57, 52140), (60, 49533), (66, 45030), (76, 39105), (79, 37620), (90, 33022), (95, 31284), (99, 30020), (110, 27018), (114, 26070), (132, 22515), (158, 18810), (165, 18012), (171, 17380), (180, 16511), (190, 15642), (198, 15010), (209, 14220), (220, 13509), (228, 13035), (237, 12540), (285, 10428), (316, 9405), (330, 9006), (342, 8690), (380, 7821), (395, 7524), (396, 7505), (418, 7110), (474, 6270), (495, 6004), (570, 5214), (627, 4740), (660, 4503), (684, 4345), (711, 4180), (790, 3762), (836, 3555), (855, 3476), (869, 3420), (948, 3135), (990, 3002), (1045, 2844), (1140, 2607), (1185, 2508), (1254, 2370), (1422, 2090), (1501, 1980), (1580, 1881), (1710, 1738)]