278328652

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 587157984

約数和(自身を除く): 308829332

約数列:

[1, 2, 4, 7, 14, 28, 37, 53, 74, 106, 137, 148, 212, 259, 274, 371, 518, 548, 742, 959, 1036, 1369, 1484, 1918, 1961, 2738, 3836, 3922, 5069, 5476, 7261, 7844, 9583, 10138, 13727, 14522, 19166, 20276, 27454, 29044, 35483, 38332, 50827, 54908, 70966, 72557, 101654, 141932, 145114, 187553, 203308, 268657, 290228, 375106, 507899, 537314, 750212, 1015798, 1074628, 1312871, 1880599, 2031596, 2625742, 3761198, 5251484, 7522396, 9940309, 19880618, 39761236, 69582163, 139164326, 278328652]

約数ペア:

[(1, 278328652), (2, 139164326), (4, 69582163), (7, 39761236), (14, 19880618), (28, 9940309), (37, 7522396), (53, 5251484), (74, 3761198), (106, 2625742), (137, 2031596), (148, 1880599), (212, 1312871), (259, 1074628), (274, 1015798), (371, 750212), (518, 537314), (548, 507899), (742, 375106), (959, 290228), (1036, 268657), (1369, 203308), (1484, 187553), (1918, 145114), (1961, 141932), (2738, 101654), (3836, 72557), (3922, 70966), (5069, 54908), (5476, 50827), (7261, 38332), (7844, 35483), (9583, 29044), (10138, 27454), (13727, 20276), (14522, 19166)]