20660360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34497400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 83, 98, 127, 140, 166, 196, 245, 254, 280, 332, 392, 415, 490, 508, 581, 635, 664, 830, 889, 980, 1016, 1162, 1270, 1660, 1778, 1960, 2324, 2540, 2905, 3320, 3556, 4067, 4445, 4648, 5080, 5810, 6223, 7112, 8134, 8890, 10541, 11620, 12446, 16268, 17780, 20335, 21082, 23240, 24892, 31115, 32536, 35560, 40670, 42164, 49784, 52705, 62230, 73787, 81340, 84328, 105410, 124460, 147574, 162680, 210820, 248920, 295148, 368935, 421640, 516509, 590296, 737870, 1033018, 1475740, 2066036, 2582545, 2951480, 4132072, 5165090, 10330180, 20660360]

約数ペア:

[(1, 20660360), (2, 10330180), (4, 5165090), (5, 4132072), (7, 2951480), (8, 2582545), (10, 2066036), (14, 1475740), (20, 1033018), (28, 737870), (35, 590296), (40, 516509), (49, 421640), (56, 368935), (70, 295148), (83, 248920), (98, 210820), (127, 162680), (140, 147574), (166, 124460), (196, 105410), (245, 84328), (254, 81340), (280, 73787), (332, 62230), (392, 52705), (415, 49784), (490, 42164), (508, 40670), (581, 35560), (635, 32536), (664, 31115), (830, 24892), (889, 23240), (980, 21082), (1016, 20335), (1162, 17780), (1270, 16268), (1660, 12446), (1778, 11620), (1960, 10541), (2324, 8890), (2540, 8134), (2905, 7112), (3320, 6223), (3556, 5810), (4067, 5080), (4445, 4648)]