31718940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 103765536

約数和(自身を除く): 72046596

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 121, 132, 165, 170, 187, 204, 220, 242, 255, 257, 330, 340, 363, 374, 484, 510, 514, 561, 605, 660, 726, 748, 771, 935, 1020, 1028, 1122, 1210, 1285, 1452, 1542, 1815, 1870, 2057, 2244, 2420, 2570, 2805, 2827, 3084, 3630, 3740, 3855, 4114, 4369, 5140, 5610, 5654, 6171, 7260, 7710, 8228, 8481, 8738, 10285, 11220, 11308, 12342, 13107, 14135, 15420, 16962, 17476, 20570, 21845, 24684, 26214, 28270, 30855, 31097, 33924, 41140, 42405, 43690, 48059, 52428, 56540, 61710, 62194, 65535, 84810, 87380, 93291, 96118, 123420, 124388, 131070, 144177, 155485, 169620, 186582, 192236, 240295, 262140, 288354, 310970, 373164, 466455, 480590, 528649, 576708, 621940, 720885, 932910, 961180, 1057298, 1441770, 1585947, 1865820, 2114596, 2643245, 2883540, 3171894, 5286490, 6343788, 7929735, 10572980, 15859470, 31718940]

約数ペア:

[(1, 31718940), (2, 15859470), (3, 10572980), (4, 7929735), (5, 6343788), (6, 5286490), (10, 3171894), (11, 2883540), (12, 2643245), (15, 2114596), (17, 1865820), (20, 1585947), (22, 1441770), (30, 1057298), (33, 961180), (34, 932910), (44, 720885), (51, 621940), (55, 576708), (60, 528649), (66, 480590), (68, 466455), (85, 373164), (102, 310970), (110, 288354), (121, 262140), (132, 240295), (165, 192236), (170, 186582), (187, 169620), (204, 155485), (220, 144177), (242, 131070), (255, 124388), (257, 123420), (330, 96118), (340, 93291), (363, 87380), (374, 84810), (484, 65535), (510, 62194), (514, 61710), (561, 56540), (605, 52428), (660, 48059), (726, 43690), (748, 42405), (771, 41140), (935, 33924), (1020, 31097), (1028, 30855), (1122, 28270), (1210, 26214), (1285, 24684), (1452, 21845), (1542, 20570), (1815, 17476), (1870, 16962), (2057, 15420), (2244, 14135), (2420, 13107), (2570, 12342), (2805, 11308), (2827, 11220), (3084, 10285), (3630, 8738), (3740, 8481), (3855, 8228), (4114, 7710), (4369, 7260), (5140, 6171), (5610, 5654)]