19917480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 46437720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 79, 88, 110, 120, 132, 158, 165, 191, 220, 237, 264, 316, 330, 382, 395, 440, 474, 573, 632, 660, 764, 790, 869, 948, 955, 1146, 1185, 1320, 1528, 1580, 1738, 1896, 1910, 2101, 2292, 2370, 2607, 2865, 3160, 3476, 3820, 4202, 4345, 4584, 4740, 5214, 5730, 6303, 6952, 7640, 8404, 8690, 9480, 10428, 10505, 11460, 12606, 13035, 15089, 16808, 17380, 20856, 21010, 22920, 25212, 26070, 30178, 31515, 34760, 42020, 45267, 50424, 52140, 60356, 63030, 75445, 84040, 90534, 104280, 120712, 126060, 150890, 165979, 181068, 226335, 252120, 301780, 331958, 362136, 452670, 497937, 603560, 663916, 829895, 905340, 995874, 1327832, 1659790, 1810680, 1991748, 2489685, 3319580, 3983496, 4979370, 6639160, 9958740, 19917480]

約数ペア:

[(1, 19917480), (2, 9958740), (3, 6639160), (4, 4979370), (5, 3983496), (6, 3319580), (8, 2489685), (10, 1991748), (11, 1810680), (12, 1659790), (15, 1327832), (20, 995874), (22, 905340), (24, 829895), (30, 663916), (33, 603560), (40, 497937), (44, 452670), (55, 362136), (60, 331958), (66, 301780), (79, 252120), (88, 226335), (110, 181068), (120, 165979), (132, 150890), (158, 126060), (165, 120712), (191, 104280), (220, 90534), (237, 84040), (264, 75445), (316, 63030), (330, 60356), (382, 52140), (395, 50424), (440, 45267), (474, 42020), (573, 34760), (632, 31515), (660, 30178), (764, 26070), (790, 25212), (869, 22920), (948, 21010), (955, 20856), (1146, 17380), (1185, 16808), (1320, 15089), (1528, 13035), (1580, 12606), (1738, 11460), (1896, 10505), (1910, 10428), (2101, 9480), (2292, 8690), (2370, 8404), (2607, 7640), (2865, 6952), (3160, 6303), (3476, 5730), (3820, 5214), (4202, 4740), (4345, 4584)]