20145408444

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{575123}}^1$

素因数の和:575279

約数の個数: 72

約数和(自身を含む): 58616638080

約数和(自身を除く): 38471229636

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 834, 973, 1251, 1668, 1946, 2502, 2919, 3892, 5004, 5838, 8757, 11676, 17514, 35028, 575123, 1150246, 1725369, 2300492, 3450738, 4025861, 5176107, 6901476, 8051722, 10352214, 12077583, 16103444, 20704428, 24155166, 36232749, 48310332, 72465498, 79942097, 144930996, 159884194, 239826291, 319768388, 479652582, 559594679, 719478873, 959305164, 1119189358, 1438957746, 1678784037, 2238378716, 2877915492, 3357568074, 5036352111, 6715136148, 10072704222, 20145408444]

約数ペア:

[(1, 20145408444), (2, 10072704222), (3, 6715136148), (4, 5036352111), (6, 3357568074), (7, 2877915492), (9, 2238378716), (12, 1678784037), (14, 1438957746), (18, 1119189358), (21, 959305164), (28, 719478873), (36, 559594679), (42, 479652582), (63, 319768388), (84, 239826291), (126, 159884194), (139, 144930996), (252, 79942097), (278, 72465498), (417, 48310332), (556, 36232749), (834, 24155166), (973, 20704428), (1251, 16103444), (1668, 12077583), (1946, 10352214), (2502, 8051722), (2919, 6901476), (3892, 5176107), (5004, 4025861), (5838, 3450738), (8757, 2300492), (11676, 1725369), (17514, 1150246), (35028, 575123)]