31278870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:530

約数の個数: 96

約数和(自身を含む): 93899520

約数和(自身を除く): 62620650

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 131, 210, 262, 315, 379, 393, 630, 655, 758, 786, 917, 1137, 1179, 1310, 1834, 1895, 1965, 2274, 2358, 2653, 2751, 3411, 3790, 3930, 4585, 5306, 5502, 5685, 5895, 6822, 7959, 8253, 9170, 11370, 11790, 13265, 13755, 15918, 16506, 17055, 23877, 26530, 27510, 34110, 39795, 41265, 47754, 49649, 79590, 82530, 99298, 119385, 148947, 238770, 248245, 297894, 347543, 446841, 496490, 695086, 744735, 893682, 1042629, 1489470, 1737715, 2085258, 2234205, 3127887, 3475430, 4468410, 5213145, 6255774, 10426290, 15639435, 31278870]

約数ペア:

[(1, 31278870), (2, 15639435), (3, 10426290), (5, 6255774), (6, 5213145), (7, 4468410), (9, 3475430), (10, 3127887), (14, 2234205), (15, 2085258), (18, 1737715), (21, 1489470), (30, 1042629), (35, 893682), (42, 744735), (45, 695086), (63, 496490), (70, 446841), (90, 347543), (105, 297894), (126, 248245), (131, 238770), (210, 148947), (262, 119385), (315, 99298), (379, 82530), (393, 79590), (630, 49649), (655, 47754), (758, 41265), (786, 39795), (917, 34110), (1137, 27510), (1179, 26530), (1310, 23877), (1834, 17055), (1895, 16506), (1965, 15918), (2274, 13755), (2358, 13265), (2653, 11790), (2751, 11370), (3411, 9170), (3790, 8253), (3930, 7959), (4585, 6822), (5306, 5895), (5502, 5685)]