20129656880

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{42197}}^1$

素因数の和:42366

約数の個数: 80

約数和(自身を含む): 48034827360

約数和(自身を除く): 27905170480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 89, 134, 178, 268, 335, 356, 445, 536, 670, 712, 890, 1072, 1340, 1424, 1780, 2680, 3560, 5360, 5963, 7120, 11926, 23852, 29815, 42197, 47704, 59630, 84394, 95408, 119260, 168788, 210985, 238520, 337576, 421970, 477040, 675152, 843940, 1687880, 2827199, 3375760, 3755533, 5654398, 7511066, 11308796, 14135995, 15022132, 18777665, 22617592, 28271990, 30044264, 37555330, 45235184, 56543980, 60088528, 75110660, 113087960, 150221320, 226175920, 251620711, 300442640, 503241422, 1006482844, 1258103555, 2012965688, 2516207110, 4025931376, 5032414220, 10064828440, 20129656880]

約数ペア:

[(1, 20129656880), (2, 10064828440), (4, 5032414220), (5, 4025931376), (8, 2516207110), (10, 2012965688), (16, 1258103555), (20, 1006482844), (40, 503241422), (67, 300442640), (80, 251620711), (89, 226175920), (134, 150221320), (178, 113087960), (268, 75110660), (335, 60088528), (356, 56543980), (445, 45235184), (536, 37555330), (670, 30044264), (712, 28271990), (890, 22617592), (1072, 18777665), (1340, 15022132), (1424, 14135995), (1780, 11308796), (2680, 7511066), (3560, 5654398), (5360, 3755533), (5963, 3375760), (7120, 2827199), (11926, 1687880), (23852, 843940), (29815, 675152), (42197, 477040), (47704, 421970), (59630, 337576), (84394, 238520), (95408, 210985), (119260, 168788)]