20105190

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 42636762

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 47, 49, 63, 70, 90, 94, 97, 98, 105, 126, 141, 147, 194, 210, 235, 245, 282, 291, 294, 315, 329, 423, 441, 470, 485, 490, 582, 630, 658, 679, 705, 735, 846, 873, 882, 970, 987, 1358, 1410, 1455, 1470, 1645, 1746, 1974, 2037, 2115, 2205, 2303, 2910, 2961, 3290, 3395, 4074, 4230, 4365, 4410, 4559, 4606, 4753, 4935, 5922, 6111, 6790, 6909, 8730, 9118, 9506, 9870, 10185, 11515, 12222, 13677, 13818, 14259, 14805, 20370, 20727, 22795, 23030, 23765, 27354, 28518, 29610, 30555, 31913, 34545, 41031, 41454, 42777, 45590, 47530, 61110, 63826, 68385, 69090, 71295, 82062, 85554, 95739, 103635, 136770, 142590, 159565, 191478, 205155, 207270, 213885, 223391, 287217, 319130, 410310, 427770, 446782, 478695, 574434, 670173, 957390, 1116955, 1340346, 1436085, 2010519, 2233910, 2872170, 3350865, 4021038, 6701730, 10052595, 20105190]

約数ペア:

[(1, 20105190), (2, 10052595), (3, 6701730), (5, 4021038), (6, 3350865), (7, 2872170), (9, 2233910), (10, 2010519), (14, 1436085), (15, 1340346), (18, 1116955), (21, 957390), (30, 670173), (35, 574434), (42, 478695), (45, 446782), (47, 427770), (49, 410310), (63, 319130), (70, 287217), (90, 223391), (94, 213885), (97, 207270), (98, 205155), (105, 191478), (126, 159565), (141, 142590), (147, 136770), (194, 103635), (210, 95739), (235, 85554), (245, 82062), (282, 71295), (291, 69090), (294, 68385), (315, 63826), (329, 61110), (423, 47530), (441, 45590), (470, 42777), (485, 41454), (490, 41031), (582, 34545), (630, 31913), (658, 30555), (679, 29610), (705, 28518), (735, 27354), (846, 23765), (873, 23030), (882, 22795), (970, 20727), (987, 20370), (1358, 14805), (1410, 14259), (1455, 13818), (1470, 13677), (1645, 12222), (1746, 11515), (1974, 10185), (2037, 9870), (2115, 9506), (2205, 9118), (2303, 8730), (2910, 6909), (2961, 6790), (3290, 6111), (3395, 5922), (4074, 4935), (4230, 4753), (4365, 4606), (4410, 4559)]