71020040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 199584000

約数和(自身を除く): 128563960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 109, 130, 140, 179, 182, 218, 260, 280, 358, 364, 436, 455, 520, 545, 716, 728, 763, 872, 895, 910, 1090, 1253, 1417, 1432, 1526, 1790, 1820, 2180, 2327, 2506, 2834, 3052, 3580, 3640, 3815, 4360, 4654, 5012, 5668, 6104, 6265, 7085, 7160, 7630, 9308, 9919, 10024, 11336, 11635, 12530, 14170, 15260, 16289, 18616, 19511, 19838, 23270, 25060, 28340, 30520, 32578, 39022, 39676, 46540, 49595, 50120, 56680, 65156, 78044, 79352, 81445, 93080, 97555, 99190, 130312, 136577, 156088, 162890, 195110, 198380, 253643, 273154, 325780, 390220, 396760, 507286, 546308, 651560, 682885, 780440, 1014572, 1092616, 1268215, 1365770, 1775501, 2029144, 2536430, 2731540, 3551002, 5072860, 5463080, 7102004, 8877505, 10145720, 14204008, 17755010, 35510020, 71020040]

約数ペア:

[(1, 71020040), (2, 35510020), (4, 17755010), (5, 14204008), (7, 10145720), (8, 8877505), (10, 7102004), (13, 5463080), (14, 5072860), (20, 3551002), (26, 2731540), (28, 2536430), (35, 2029144), (40, 1775501), (52, 1365770), (56, 1268215), (65, 1092616), (70, 1014572), (91, 780440), (104, 682885), (109, 651560), (130, 546308), (140, 507286), (179, 396760), (182, 390220), (218, 325780), (260, 273154), (280, 253643), (358, 198380), (364, 195110), (436, 162890), (455, 156088), (520, 136577), (545, 130312), (716, 99190), (728, 97555), (763, 93080), (872, 81445), (895, 79352), (910, 78044), (1090, 65156), (1253, 56680), (1417, 50120), (1432, 49595), (1526, 46540), (1790, 39676), (1820, 39022), (2180, 32578), (2327, 30520), (2506, 28340), (2834, 25060), (3052, 23270), (3580, 19838), (3640, 19511), (3815, 18616), (4360, 16289), (4654, 15260), (5012, 14170), (5668, 12530), (6104, 11635), (6265, 11336), (7085, 10024), (7160, 9919), (7630, 9308)]