31891804

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 67755520

約数和(自身を除く): 35863716

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 151, 266, 302, 397, 532, 604, 794, 1057, 1588, 2114, 2779, 2869, 4228, 5558, 5738, 7543, 11116, 11476, 15086, 20083, 30172, 40166, 52801, 59947, 80332, 105602, 119894, 211204, 239788, 419629, 839258, 1138993, 1678516, 2277986, 4555972, 7972951, 15945902, 31891804]

約数ペア:

[(1, 31891804), (2, 15945902), (4, 7972951), (7, 4555972), (14, 2277986), (19, 1678516), (28, 1138993), (38, 839258), (76, 419629), (133, 239788), (151, 211204), (266, 119894), (302, 105602), (397, 80332), (532, 59947), (604, 52801), (794, 40166), (1057, 30172), (1588, 20083), (2114, 15086), (2779, 11476), (2869, 11116), (4228, 7543), (5558, 5738)]