31357040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2741}}^1$

素因数の和:2778

約数の個数: 80

約数和(自身を含む): 85682016

約数和(自身を除く): 54324976

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2741, 2860, 5482, 5720, 10964, 11440, 13705, 21928, 27410, 30151, 35633, 43856, 54820, 60302, 71266, 109640, 120604, 142532, 150755, 178165, 219280, 241208, 285064, 301510, 356330, 391963, 482416, 570128, 603020, 712660, 783926, 1206040, 1425320, 1567852, 1959815, 2412080, 2850640, 3135704, 3919630, 6271408, 7839260, 15678520, 31357040]

約数ペア:

[(1, 31357040), (2, 15678520), (4, 7839260), (5, 6271408), (8, 3919630), (10, 3135704), (11, 2850640), (13, 2412080), (16, 1959815), (20, 1567852), (22, 1425320), (26, 1206040), (40, 783926), (44, 712660), (52, 603020), (55, 570128), (65, 482416), (80, 391963), (88, 356330), (104, 301510), (110, 285064), (130, 241208), (143, 219280), (176, 178165), (208, 150755), (220, 142532), (260, 120604), (286, 109640), (440, 71266), (520, 60302), (572, 54820), (715, 43856), (880, 35633), (1040, 30151), (1144, 27410), (1430, 21928), (2288, 13705), (2741, 11440), (2860, 10964), (5482, 5720)]