20615677515

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{881}}^1\times {\mathrm{983}}^1$

素因数の和:1921

約数の個数: 72

約数和(自身を含む): 37435480992

約数和(自身を除く): 16819803477

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 881, 983, 1035, 1587, 2643, 2645, 2949, 4405, 4761, 4915, 7929, 7935, 8847, 13215, 14745, 20263, 22609, 23805, 39645, 44235, 60789, 67827, 101315, 113045, 182367, 203481, 303945, 339135, 466049, 520007, 866023, 911835, 1017405, 1398147, 1560021, 2330245, 2598069, 2600035, 4194441, 4330115, 4680063, 6990735, 7794207, 7800105, 12990345, 19918529, 20972205, 23400315, 38971035, 59755587, 99592645, 179266761, 298777935, 458126167, 896333805, 1374378501, 2290630835, 4123135503, 6871892505, 20615677515]

約数ペア:

[(1, 20615677515), (3, 6871892505), (5, 4123135503), (9, 2290630835), (15, 1374378501), (23, 896333805), (45, 458126167), (69, 298777935), (115, 179266761), (207, 99592645), (345, 59755587), (529, 38971035), (881, 23400315), (983, 20972205), (1035, 19918529), (1587, 12990345), (2643, 7800105), (2645, 7794207), (2949, 6990735), (4405, 4680063), (4761, 4330115), (4915, 4194441), (7929, 2600035), (7935, 2598069), (8847, 2330245), (13215, 1560021), (14745, 1398147), (20263, 1017405), (22609, 911835), (23805, 866023), (39645, 520007), (44235, 466049), (60789, 339135), (67827, 303945), (101315, 203481), (113045, 182367)]