28540580964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{217661}}^1$

素因数の和:217905

約数の個数: 72

約数和(自身を含む): 77815035648

約数和(自身を除く): 49274454684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 223, 294, 446, 588, 669, 892, 1338, 1561, 2676, 3122, 4683, 6244, 9366, 10927, 18732, 21854, 32781, 43708, 65562, 131124, 217661, 435322, 652983, 870644, 1305966, 1523627, 2611932, 3047254, 4570881, 6094508, 9141762, 10665389, 18283524, 21330778, 31996167, 42661556, 48538403, 63992334, 97076806, 127984668, 145615209, 194153612, 291230418, 339768821, 582460836, 679537642, 1019306463, 1359075284, 2038612926, 2378381747, 4077225852, 4756763494, 7135145241, 9513526988, 14270290482, 28540580964]

約数ペア:

[(1, 28540580964), (2, 14270290482), (3, 9513526988), (4, 7135145241), (6, 4756763494), (7, 4077225852), (12, 2378381747), (14, 2038612926), (21, 1359075284), (28, 1019306463), (42, 679537642), (49, 582460836), (84, 339768821), (98, 291230418), (147, 194153612), (196, 145615209), (223, 127984668), (294, 97076806), (446, 63992334), (588, 48538403), (669, 42661556), (892, 31996167), (1338, 21330778), (1561, 18283524), (2676, 10665389), (3122, 9141762), (4683, 6094508), (6244, 4570881), (9366, 3047254), (10927, 2611932), (18732, 1523627), (21854, 1305966), (32781, 870644), (43708, 652983), (65562, 435322), (131124, 217661)]