20343628240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{48781}}^1$

素因数の和:49208

約数の個数: 80

約数和(自身を含む): 51065387856

約数和(自身を除く): 30721759616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 401, 520, 802, 1040, 1604, 2005, 3208, 4010, 5213, 6416, 8020, 10426, 16040, 20852, 26065, 32080, 41704, 48781, 52130, 83408, 97562, 104260, 195124, 208520, 243905, 390248, 417040, 487810, 634153, 780496, 975620, 1268306, 1951240, 2536612, 3170765, 3902480, 5073224, 6341530, 10146448, 12683060, 19561181, 25366120, 39122362, 50732240, 78244724, 97805905, 156489448, 195611810, 254295353, 312978896, 391223620, 508590706, 782447240, 1017181412, 1271476765, 1564894480, 2034362824, 2542953530, 4068725648, 5085907060, 10171814120, 20343628240]

約数ペア:

[(1, 20343628240), (2, 10171814120), (4, 5085907060), (5, 4068725648), (8, 2542953530), (10, 2034362824), (13, 1564894480), (16, 1271476765), (20, 1017181412), (26, 782447240), (40, 508590706), (52, 391223620), (65, 312978896), (80, 254295353), (104, 195611810), (130, 156489448), (208, 97805905), (260, 78244724), (401, 50732240), (520, 39122362), (802, 25366120), (1040, 19561181), (1604, 12683060), (2005, 10146448), (3208, 6341530), (4010, 5073224), (5213, 3902480), (6416, 3170765), (8020, 2536612), (10426, 1951240), (16040, 1268306), (20852, 975620), (26065, 780496), (32080, 634153), (41704, 487810), (48781, 417040), (52130, 390248), (83408, 243905), (97562, 208520), (104260, 195124)]