220120978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 424569600

約数和(自身を除く): 204448622

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 149, 154, 181, 298, 362, 371, 583, 742, 1043, 1166, 1267, 1639, 1991, 2086, 2534, 3278, 3982, 4081, 7897, 8162, 9593, 11473, 13937, 15794, 19186, 22946, 26969, 27874, 53938, 55279, 67151, 86867, 105523, 110558, 134302, 173734, 188783, 211046, 296659, 377566, 593318, 608069, 738661, 1216138, 1429357, 1477322, 2076613, 2858714, 4153226, 10005499, 15722927, 20010998, 31445854, 110060489, 220120978]

約数ペア:

[(1, 220120978), (2, 110060489), (7, 31445854), (11, 20010998), (14, 15722927), (22, 10005499), (53, 4153226), (77, 2858714), (106, 2076613), (149, 1477322), (154, 1429357), (181, 1216138), (298, 738661), (362, 608069), (371, 593318), (583, 377566), (742, 296659), (1043, 211046), (1166, 188783), (1267, 173734), (1639, 134302), (1991, 110558), (2086, 105523), (2534, 86867), (3278, 67151), (3982, 55279), (4081, 53938), (7897, 27874), (8162, 26969), (9593, 22946), (11473, 19186), (13937, 15794)]