20508729470

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1\times {\mathrm{1571}}^1$

素因数の和:2081

約数の個数: 64

約数和(自身を含む): 38871912960

約数和(自身を除く): 18363183490

約数列:

[1, 2, 5, 10, 23, 46, 115, 211, 230, 269, 422, 538, 1055, 1345, 1571, 2110, 2690, 3142, 4853, 6187, 7855, 9706, 12374, 15710, 24265, 30935, 36133, 48530, 56759, 61870, 72266, 113518, 180665, 283795, 331481, 361330, 422599, 567590, 662962, 845198, 1305457, 1657405, 2112995, 2610914, 3314810, 4225990, 6527285, 7624063, 9719777, 13054570, 15248126, 19439554, 38120315, 48598885, 76240630, 89168389, 97197770, 178336778, 445841945, 891683890, 2050872947, 4101745894, 10254364735, 20508729470]

約数ペア:

[(1, 20508729470), (2, 10254364735), (5, 4101745894), (10, 2050872947), (23, 891683890), (46, 445841945), (115, 178336778), (211, 97197770), (230, 89168389), (269, 76240630), (422, 48598885), (538, 38120315), (1055, 19439554), (1345, 15248126), (1571, 13054570), (2110, 9719777), (2690, 7624063), (3142, 6527285), (4853, 4225990), (6187, 3314810), (7855, 2610914), (9706, 2112995), (12374, 1657405), (15710, 1305457), (24265, 845198), (30935, 662962), (36133, 567590), (48530, 422599), (56759, 361330), (61870, 331481), (72266, 283795), (113518, 180665)]