90019720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16921}}^1$

素因数の和:16958

約数の個数: 64

約数和(自身を含む): 243676800

約数和(自身を除く): 153657080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 16921, 33842, 67684, 84605, 118447, 135368, 169210, 236894, 321499, 338420, 473788, 592235, 642998, 676840, 947576, 1184470, 1285996, 1607495, 2250493, 2368940, 2571992, 3214990, 4500986, 4737880, 6429980, 9001972, 11252465, 12859960, 18003944, 22504930, 45009860, 90019720]

約数ペア:

[(1, 90019720), (2, 45009860), (4, 22504930), (5, 18003944), (7, 12859960), (8, 11252465), (10, 9001972), (14, 6429980), (19, 4737880), (20, 4500986), (28, 3214990), (35, 2571992), (38, 2368940), (40, 2250493), (56, 1607495), (70, 1285996), (76, 1184470), (95, 947576), (133, 676840), (140, 642998), (152, 592235), (190, 473788), (266, 338420), (280, 321499), (380, 236894), (532, 169210), (665, 135368), (760, 118447), (1064, 84605), (1330, 67684), (2660, 33842), (5320, 16921)]