77459020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{367}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 166739328

約数和(自身を除く): 89280308

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 173, 244, 305, 346, 367, 610, 692, 734, 865, 1220, 1468, 1730, 1835, 3460, 3670, 7340, 10553, 21106, 22387, 42212, 44774, 52765, 63491, 89548, 105530, 111935, 126982, 211060, 223870, 253964, 317455, 447740, 634910, 1269820, 3872951, 7745902, 15491804, 19364755, 38729510, 77459020]

約数ペア:

[(1, 77459020), (2, 38729510), (4, 19364755), (5, 15491804), (10, 7745902), (20, 3872951), (61, 1269820), (122, 634910), (173, 447740), (244, 317455), (305, 253964), (346, 223870), (367, 211060), (610, 126982), (692, 111935), (734, 105530), (865, 89548), (1220, 63491), (1468, 52765), (1730, 44774), (1835, 42212), (3460, 22387), (3670, 21106), (7340, 10553)]