20610040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1511}}^1$

素因数の和:1564

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31644680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1511, 1705, 2728, 3022, 3410, 6044, 6820, 7555, 12088, 13640, 15110, 16621, 30220, 33242, 46841, 60440, 66484, 83105, 93682, 132968, 166210, 187364, 234205, 332420, 374728, 468410, 515251, 664840, 936820, 1030502, 1873640, 2061004, 2576255, 4122008, 5152510, 10305020, 20610040]

約数ペア:

[(1, 20610040), (2, 10305020), (4, 5152510), (5, 4122008), (8, 2576255), (10, 2061004), (11, 1873640), (20, 1030502), (22, 936820), (31, 664840), (40, 515251), (44, 468410), (55, 374728), (62, 332420), (88, 234205), (110, 187364), (124, 166210), (155, 132968), (220, 93682), (248, 83105), (310, 66484), (341, 60440), (440, 46841), (620, 33242), (682, 30220), (1240, 16621), (1364, 15110), (1511, 13640), (1705, 12088), (2728, 7555), (3022, 6820), (3410, 6044)]