20123289758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1\times {\mathrm{947}}^1$

素因数の和:1553

約数の個数: 64

約数和(自身を含む): 35777064960

約数和(自身を除く): 15653775202

約数列:

[1, 2, 11, 13, 22, 26, 143, 191, 286, 382, 389, 778, 947, 1894, 2101, 2483, 4202, 4279, 4966, 5057, 8558, 10114, 10417, 12311, 20834, 24622, 27313, 54626, 55627, 74299, 111254, 135421, 148598, 180877, 270842, 361754, 368383, 736766, 817289, 965887, 1634578, 1931774, 1989647, 2351401, 3979294, 4052213, 4702802, 4788979, 8104426, 9577958, 10624757, 21249514, 25865411, 51730822, 52678769, 70361153, 105357538, 140722306, 773972683, 914694989, 1547945366, 1829389978, 10061644879, 20123289758]

約数ペア:

[(1, 20123289758), (2, 10061644879), (11, 1829389978), (13, 1547945366), (22, 914694989), (26, 773972683), (143, 140722306), (191, 105357538), (286, 70361153), (382, 52678769), (389, 51730822), (778, 25865411), (947, 21249514), (1894, 10624757), (2101, 9577958), (2483, 8104426), (4202, 4788979), (4279, 4702802), (4966, 4052213), (5057, 3979294), (8558, 2351401), (10114, 1989647), (10417, 1931774), (12311, 1634578), (20834, 965887), (24622, 817289), (27313, 736766), (54626, 368383), (55627, 361754), (74299, 270842), (111254, 180877), (135421, 148598)]