20325240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 73513440

約数和(自身を除く): 53188200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 43, 45, 52, 60, 65, 72, 78, 86, 90, 101, 104, 117, 120, 129, 130, 156, 172, 180, 195, 202, 215, 234, 258, 260, 303, 312, 344, 360, 387, 390, 404, 430, 468, 505, 516, 520, 559, 585, 606, 645, 774, 780, 808, 860, 909, 936, 1010, 1032, 1118, 1170, 1212, 1290, 1313, 1515, 1548, 1560, 1677, 1720, 1818, 1935, 2020, 2236, 2340, 2424, 2580, 2626, 2795, 3030, 3096, 3354, 3636, 3870, 3939, 4040, 4343, 4472, 4545, 4680, 5031, 5160, 5252, 5590, 6060, 6565, 6708, 7272, 7740, 7878, 8385, 8686, 9090, 10062, 10504, 11180, 11817, 12120, 13029, 13130, 13416, 15480, 15756, 16770, 17372, 18180, 19695, 20124, 21715, 22360, 23634, 25155, 26058, 26260, 31512, 33540, 34744, 36360, 39087, 39390, 40248, 43430, 47268, 50310, 52116, 52520, 56459, 59085, 65145, 67080, 78174, 78780, 86860, 94536, 100620, 104232, 112918, 118170, 130290, 156348, 157560, 169377, 173720, 195435, 201240, 225836, 236340, 260580, 282295, 312696, 338754, 390870, 451672, 472680, 508131, 521160, 564590, 677508, 781740, 846885, 1016262, 1129180, 1355016, 1563480, 1693770, 2032524, 2258360, 2540655, 3387540, 4065048, 5081310, 6775080, 10162620, 20325240]

約数ペア:

[(1, 20325240), (2, 10162620), (3, 6775080), (4, 5081310), (5, 4065048), (6, 3387540), (8, 2540655), (9, 2258360), (10, 2032524), (12, 1693770), (13, 1563480), (15, 1355016), (18, 1129180), (20, 1016262), (24, 846885), (26, 781740), (30, 677508), (36, 564590), (39, 521160), (40, 508131), (43, 472680), (45, 451672), (52, 390870), (60, 338754), (65, 312696), (72, 282295), (78, 260580), (86, 236340), (90, 225836), (101, 201240), (104, 195435), (117, 173720), (120, 169377), (129, 157560), (130, 156348), (156, 130290), (172, 118170), (180, 112918), (195, 104232), (202, 100620), (215, 94536), (234, 86860), (258, 78780), (260, 78174), (303, 67080), (312, 65145), (344, 59085), (360, 56459), (387, 52520), (390, 52116), (404, 50310), (430, 47268), (468, 43430), (505, 40248), (516, 39390), (520, 39087), (559, 36360), (585, 34744), (606, 33540), (645, 31512), (774, 26260), (780, 26058), (808, 25155), (860, 23634), (909, 22360), (936, 21715), (1010, 20124), (1032, 19695), (1118, 18180), (1170, 17372), (1212, 16770), (1290, 15756), (1313, 15480), (1515, 13416), (1548, 13130), (1560, 13029), (1677, 12120), (1720, 11817), (1818, 11180), (1935, 10504), (2020, 10062), (2236, 9090), (2340, 8686), (2424, 8385), (2580, 7878), (2626, 7740), (2795, 7272), (3030, 6708), (3096, 6565), (3354, 6060), (3636, 5590), (3870, 5252), (3939, 5160), (4040, 5031), (4343, 4680), (4472, 4545)]