31021328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 70995456

約数和(自身を除く): 39974128

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 208, 221, 248, 272, 283, 403, 442, 496, 527, 566, 806, 884, 1054, 1132, 1612, 1768, 2108, 2264, 3224, 3536, 3679, 4216, 4528, 4811, 6448, 6851, 7358, 8432, 8773, 9622, 13702, 14716, 17546, 19244, 27404, 29432, 35092, 38488, 54808, 58864, 62543, 70184, 76976, 109616, 114049, 125086, 140368, 149141, 228098, 250172, 298282, 456196, 500344, 596564, 912392, 1000688, 1193128, 1824784, 1938833, 2386256, 3877666, 7755332, 15510664, 31021328]

約数ペア:

[(1, 31021328), (2, 15510664), (4, 7755332), (8, 3877666), (13, 2386256), (16, 1938833), (17, 1824784), (26, 1193128), (31, 1000688), (34, 912392), (52, 596564), (62, 500344), (68, 456196), (104, 298282), (124, 250172), (136, 228098), (208, 149141), (221, 140368), (248, 125086), (272, 114049), (283, 109616), (403, 76976), (442, 70184), (496, 62543), (527, 58864), (566, 54808), (806, 38488), (884, 35092), (1054, 29432), (1132, 27404), (1612, 19244), (1768, 17546), (2108, 14716), (2264, 13702), (3224, 9622), (3536, 8773), (3679, 8432), (4216, 7358), (4528, 6851), (4811, 6448)]