31347820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{233}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 78073632

約数和(自身を除く): 46725812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 233, 310, 434, 466, 620, 868, 932, 961, 1085, 1165, 1631, 1922, 2170, 2330, 3262, 3844, 4340, 4660, 4805, 6524, 6727, 7223, 8155, 9610, 13454, 14446, 16310, 19220, 26908, 28892, 32620, 33635, 36115, 50561, 67270, 72230, 101122, 134540, 144460, 202244, 223913, 252805, 447826, 505610, 895652, 1011220, 1119565, 1567391, 2239130, 3134782, 4478260, 6269564, 7836955, 15673910, 31347820]

約数ペア:

[(1, 31347820), (2, 15673910), (4, 7836955), (5, 6269564), (7, 4478260), (10, 3134782), (14, 2239130), (20, 1567391), (28, 1119565), (31, 1011220), (35, 895652), (62, 505610), (70, 447826), (124, 252805), (140, 223913), (155, 202244), (217, 144460), (233, 134540), (310, 101122), (434, 72230), (466, 67270), (620, 50561), (868, 36115), (932, 33635), (961, 32620), (1085, 28892), (1165, 26908), (1631, 19220), (1922, 16310), (2170, 14446), (2330, 13454), (3262, 9610), (3844, 8155), (4340, 7223), (4660, 6727), (4805, 6524)]