20122970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1142

約数の個数: 32

約数和(自身を含む): 41558400

約数和(自身を除く): 21435430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 389, 739, 778, 1478, 1945, 2723, 3695, 3890, 5173, 5446, 7390, 10346, 13615, 25865, 27230, 51730, 287471, 574942, 1437355, 2012297, 2874710, 4024594, 10061485, 20122970]

約数ペア:

[(1, 20122970), (2, 10061485), (5, 4024594), (7, 2874710), (10, 2012297), (14, 1437355), (35, 574942), (70, 287471), (389, 51730), (739, 27230), (778, 25865), (1478, 13615), (1945, 10346), (2723, 7390), (3695, 5446), (3890, 5173)]