20873790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1949}}^1$

素因数の和:1986

約数の個数: 96

約数和(自身を含む): 65707200

約数和(自身を除く): 44833410

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 17, 18, 21, 30, 34, 35, 42, 45, 51, 63, 70, 85, 90, 102, 105, 119, 126, 153, 170, 210, 238, 255, 306, 315, 357, 510, 595, 630, 714, 765, 1071, 1190, 1530, 1785, 1949, 2142, 3570, 3898, 5355, 5847, 9745, 10710, 11694, 13643, 17541, 19490, 27286, 29235, 33133, 35082, 40929, 58470, 66266, 68215, 81858, 87705, 99399, 122787, 136430, 165665, 175410, 198798, 204645, 231931, 245574, 298197, 331330, 409290, 463862, 496995, 596394, 613935, 695793, 993990, 1159655, 1227870, 1391586, 1490985, 2087379, 2319310, 2981970, 3478965, 4174758, 6957930, 10436895, 20873790]

約数ペア:

[(1, 20873790), (2, 10436895), (3, 6957930), (5, 4174758), (6, 3478965), (7, 2981970), (9, 2319310), (10, 2087379), (14, 1490985), (15, 1391586), (17, 1227870), (18, 1159655), (21, 993990), (30, 695793), (34, 613935), (35, 596394), (42, 496995), (45, 463862), (51, 409290), (63, 331330), (70, 298197), (85, 245574), (90, 231931), (102, 204645), (105, 198798), (119, 175410), (126, 165665), (153, 136430), (170, 122787), (210, 99399), (238, 87705), (255, 81858), (306, 68215), (315, 66266), (357, 58470), (510, 40929), (595, 35082), (630, 33133), (714, 29235), (765, 27286), (1071, 19490), (1190, 17541), (1530, 13643), (1785, 11694), (1949, 10710), (2142, 9745), (3570, 5847), (3898, 5355)]