19540710

素因数分解:

$2^1\times 3^3\times 5^1\times 7^3\times {\mathrm{211}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 61056000

約数和(自身を除く): 41515290

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 90, 98, 105, 126, 135, 147, 189, 210, 211, 245, 270, 294, 315, 343, 378, 422, 441, 490, 630, 633, 686, 735, 882, 945, 1029, 1055, 1266, 1323, 1470, 1477, 1715, 1890, 1899, 2058, 2110, 2205, 2646, 2954, 3087, 3165, 3430, 3798, 4410, 4431, 5145, 5697, 6174, 6330, 6615, 7385, 8862, 9261, 9495, 10290, 10339, 11394, 13230, 13293, 14770, 15435, 18522, 18990, 20678, 22155, 26586, 28485, 30870, 31017, 39879, 44310, 46305, 51695, 56970, 62034, 66465, 72373, 79758, 92610, 93051, 103390, 132930, 144746, 155085, 186102, 199395, 217119, 279153, 310170, 361865, 398790, 434238, 465255, 558306, 651357, 723730, 930510, 1085595, 1302714, 1395765, 1954071, 2171190, 2791530, 3256785, 3908142, 6513570, 9770355, 19540710]

約数ペア:

[(1, 19540710), (2, 9770355), (3, 6513570), (5, 3908142), (6, 3256785), (7, 2791530), (9, 2171190), (10, 1954071), (14, 1395765), (15, 1302714), (18, 1085595), (21, 930510), (27, 723730), (30, 651357), (35, 558306), (42, 465255), (45, 434238), (49, 398790), (54, 361865), (63, 310170), (70, 279153), (90, 217119), (98, 199395), (105, 186102), (126, 155085), (135, 144746), (147, 132930), (189, 103390), (210, 93051), (211, 92610), (245, 79758), (270, 72373), (294, 66465), (315, 62034), (343, 56970), (378, 51695), (422, 46305), (441, 44310), (490, 39879), (630, 31017), (633, 30870), (686, 28485), (735, 26586), (882, 22155), (945, 20678), (1029, 18990), (1055, 18522), (1266, 15435), (1323, 14770), (1470, 13293), (1477, 13230), (1715, 11394), (1890, 10339), (1899, 10290), (2058, 9495), (2110, 9261), (2205, 8862), (2646, 7385), (2954, 6615), (3087, 6330), (3165, 6174), (3430, 5697), (3798, 5145), (4410, 4431)]