19899180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{929}}^1$

素因数の和:968

約数の個数: 144

約数和(自身を含む): 73120320

約数和(自身を除く): 53221140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 929, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1858, 2142, 2380, 2787, 3060, 3570, 3716, 4284, 4645, 5355, 5574, 6503, 7140, 8361, 9290, 10710, 11148, 13006, 13935, 15793, 16722, 18580, 19509, 21420, 26012, 27870, 31586, 32515, 33444, 39018, 41805, 47379, 55740, 58527, 63172, 65030, 78036, 78965, 83610, 94758, 97545, 110551, 117054, 130060, 142137, 157930, 167220, 189516, 195090, 221102, 234108, 236895, 284274, 292635, 315860, 331653, 390180, 442204, 473790, 552755, 568548, 585270, 663306, 710685, 947580, 994959, 1105510, 1170540, 1326612, 1421370, 1658265, 1989918, 2211020, 2842740, 3316530, 3979836, 4974795, 6633060, 9949590, 19899180]

約数ペア:

[(1, 19899180), (2, 9949590), (3, 6633060), (4, 4974795), (5, 3979836), (6, 3316530), (7, 2842740), (9, 2211020), (10, 1989918), (12, 1658265), (14, 1421370), (15, 1326612), (17, 1170540), (18, 1105510), (20, 994959), (21, 947580), (28, 710685), (30, 663306), (34, 585270), (35, 568548), (36, 552755), (42, 473790), (45, 442204), (51, 390180), (60, 331653), (63, 315860), (68, 292635), (70, 284274), (84, 236895), (85, 234108), (90, 221102), (102, 195090), (105, 189516), (119, 167220), (126, 157930), (140, 142137), (153, 130060), (170, 117054), (180, 110551), (204, 97545), (210, 94758), (238, 83610), (252, 78965), (255, 78036), (306, 65030), (315, 63172), (340, 58527), (357, 55740), (420, 47379), (476, 41805), (510, 39018), (595, 33444), (612, 32515), (630, 31586), (714, 27870), (765, 26012), (929, 21420), (1020, 19509), (1071, 18580), (1190, 16722), (1260, 15793), (1428, 13935), (1530, 13006), (1785, 11148), (1858, 10710), (2142, 9290), (2380, 8361), (2787, 7140), (3060, 6503), (3570, 5574), (3716, 5355), (4284, 4645)]