65640016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 144365760

約数和(自身を除く): 78725744

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 43, 52, 82, 86, 104, 164, 172, 179, 208, 328, 344, 358, 533, 559, 656, 688, 716, 1066, 1118, 1432, 1763, 2132, 2236, 2327, 2864, 3526, 4264, 4472, 4654, 7052, 7339, 7697, 8528, 8944, 9308, 14104, 14678, 15394, 18616, 22919, 28208, 29356, 30788, 37232, 45838, 58712, 61576, 91676, 95407, 100061, 117424, 123152, 183352, 190814, 200122, 315577, 366704, 381628, 400244, 631154, 763256, 800488, 1262308, 1526512, 1600976, 2524616, 4102501, 5049232, 8205002, 16410004, 32820008, 65640016]

約数ペア:

[(1, 65640016), (2, 32820008), (4, 16410004), (8, 8205002), (13, 5049232), (16, 4102501), (26, 2524616), (41, 1600976), (43, 1526512), (52, 1262308), (82, 800488), (86, 763256), (104, 631154), (164, 400244), (172, 381628), (179, 366704), (208, 315577), (328, 200122), (344, 190814), (358, 183352), (533, 123152), (559, 117424), (656, 100061), (688, 95407), (716, 91676), (1066, 61576), (1118, 58712), (1432, 45838), (1763, 37232), (2132, 30788), (2236, 29356), (2327, 28208), (2864, 22919), (3526, 18616), (4264, 15394), (4472, 14678), (4654, 14104), (7052, 9308), (7339, 8944), (7697, 8528)]