78725380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{373}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 169457904

約数和(自身を除く): 90732524

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 173, 244, 305, 346, 373, 610, 692, 746, 865, 1220, 1492, 1730, 1865, 3460, 3730, 7460, 10553, 21106, 22753, 42212, 45506, 52765, 64529, 91012, 105530, 113765, 129058, 211060, 227530, 258116, 322645, 455060, 645290, 1290580, 3936269, 7872538, 15745076, 19681345, 39362690, 78725380]

約数ペア:

[(1, 78725380), (2, 39362690), (4, 19681345), (5, 15745076), (10, 7872538), (20, 3936269), (61, 1290580), (122, 645290), (173, 455060), (244, 322645), (305, 258116), (346, 227530), (373, 211060), (610, 129058), (692, 113765), (746, 105530), (865, 91012), (1220, 64529), (1492, 52765), (1730, 45506), (1865, 42212), (3460, 22753), (3730, 21106), (7460, 10553)]