19950280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1718

約数の個数: 64

約数和(自身を含む): 52525440

約数和(自身を除く): 32575160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1657, 1720, 2408, 3010, 3314, 6020, 6628, 8285, 11599, 12040, 13256, 16570, 23198, 33140, 46396, 57995, 66280, 71251, 92792, 115990, 142502, 231980, 285004, 356255, 463960, 498757, 570008, 712510, 997514, 1425020, 1995028, 2493785, 2850040, 3990056, 4987570, 9975140, 19950280]

約数ペア:

[(1, 19950280), (2, 9975140), (4, 4987570), (5, 3990056), (7, 2850040), (8, 2493785), (10, 1995028), (14, 1425020), (20, 997514), (28, 712510), (35, 570008), (40, 498757), (43, 463960), (56, 356255), (70, 285004), (86, 231980), (140, 142502), (172, 115990), (215, 92792), (280, 71251), (301, 66280), (344, 57995), (430, 46396), (602, 33140), (860, 23198), (1204, 16570), (1505, 13256), (1657, 12040), (1720, 11599), (2408, 8285), (3010, 6628), (3314, 6020)]