19877910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{50969}}^1$

素因数の和:50992

約数の個数: 32

約数和(自身を含む): 51377760

約数和(自身を除く): 31499850

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 50969, 101938, 152907, 254845, 305814, 509690, 662597, 764535, 1325194, 1529070, 1987791, 3312985, 3975582, 6625970, 9938955, 19877910]

約数ペア:

[(1, 19877910), (2, 9938955), (3, 6625970), (5, 3975582), (6, 3312985), (10, 1987791), (13, 1529070), (15, 1325194), (26, 764535), (30, 662597), (39, 509690), (65, 305814), (78, 254845), (130, 152907), (195, 101938), (390, 50969)]