20623890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 61585920

約数和(自身を除く): 40962030

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 21, 30, 34, 35, 42, 51, 53, 70, 85, 102, 105, 106, 109, 119, 159, 170, 210, 218, 238, 255, 265, 318, 327, 357, 371, 510, 530, 545, 595, 654, 714, 742, 763, 795, 901, 1090, 1113, 1190, 1526, 1590, 1635, 1785, 1802, 1853, 1855, 2226, 2289, 2703, 3270, 3570, 3706, 3710, 3815, 4505, 4578, 5406, 5559, 5565, 5777, 6307, 7630, 9010, 9265, 11118, 11130, 11445, 11554, 12614, 12971, 13515, 17331, 18530, 18921, 22890, 25942, 27030, 27795, 28885, 31535, 34662, 37842, 38913, 40439, 55590, 57770, 63070, 64855, 77826, 80878, 86655, 94605, 98209, 121317, 129710, 173310, 189210, 194565, 196418, 202195, 242634, 294627, 389130, 404390, 491045, 589254, 606585, 687463, 982090, 1213170, 1374926, 1473135, 2062389, 2946270, 3437315, 4124778, 6874630, 10311945, 20623890]

約数ペア:

[(1, 20623890), (2, 10311945), (3, 6874630), (5, 4124778), (6, 3437315), (7, 2946270), (10, 2062389), (14, 1473135), (15, 1374926), (17, 1213170), (21, 982090), (30, 687463), (34, 606585), (35, 589254), (42, 491045), (51, 404390), (53, 389130), (70, 294627), (85, 242634), (102, 202195), (105, 196418), (106, 194565), (109, 189210), (119, 173310), (159, 129710), (170, 121317), (210, 98209), (218, 94605), (238, 86655), (255, 80878), (265, 77826), (318, 64855), (327, 63070), (357, 57770), (371, 55590), (510, 40439), (530, 38913), (545, 37842), (595, 34662), (654, 31535), (714, 28885), (742, 27795), (763, 27030), (795, 25942), (901, 22890), (1090, 18921), (1113, 18530), (1190, 17331), (1526, 13515), (1590, 12971), (1635, 12614), (1785, 11554), (1802, 11445), (1853, 11130), (1855, 11118), (2226, 9265), (2289, 9010), (2703, 7630), (3270, 6307), (3570, 5777), (3706, 5565), (3710, 5559), (3815, 5406), (4505, 4578)]