20413260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:992

約数の個数: 144

約数和(自身を含む): 75007296

約数和(自身を除く): 54594036

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, 953, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1906, 2142, 2380, 2859, 3060, 3570, 3812, 4284, 4765, 5355, 5718, 6671, 7140, 8577, 9530, 10710, 11436, 13342, 14295, 16201, 17154, 19060, 20013, 21420, 26684, 28590, 32402, 33355, 34308, 40026, 42885, 48603, 57180, 60039, 64804, 66710, 80052, 81005, 85770, 97206, 100065, 113407, 120078, 133420, 145809, 162010, 171540, 194412, 200130, 226814, 240156, 243015, 291618, 300195, 324020, 340221, 400260, 453628, 486030, 567035, 583236, 600390, 680442, 729045, 972060, 1020663, 1134070, 1200780, 1360884, 1458090, 1701105, 2041326, 2268140, 2916180, 3402210, 4082652, 5103315, 6804420, 10206630, 20413260]

約数ペア:

[(1, 20413260), (2, 10206630), (3, 6804420), (4, 5103315), (5, 4082652), (6, 3402210), (7, 2916180), (9, 2268140), (10, 2041326), (12, 1701105), (14, 1458090), (15, 1360884), (17, 1200780), (18, 1134070), (20, 1020663), (21, 972060), (28, 729045), (30, 680442), (34, 600390), (35, 583236), (36, 567035), (42, 486030), (45, 453628), (51, 400260), (60, 340221), (63, 324020), (68, 300195), (70, 291618), (84, 243015), (85, 240156), (90, 226814), (102, 200130), (105, 194412), (119, 171540), (126, 162010), (140, 145809), (153, 133420), (170, 120078), (180, 113407), (204, 100065), (210, 97206), (238, 85770), (252, 81005), (255, 80052), (306, 66710), (315, 64804), (340, 60039), (357, 57180), (420, 48603), (476, 42885), (510, 40026), (595, 34308), (612, 33355), (630, 32402), (714, 28590), (765, 26684), (953, 21420), (1020, 20013), (1071, 19060), (1190, 17154), (1260, 16201), (1428, 14295), (1530, 13342), (1785, 11436), (1906, 10710), (2142, 9530), (2380, 8577), (2859, 7140), (3060, 6671), (3570, 5718), (3812, 5355), (4284, 4765)]