123720720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2671}}^1$

素因数の和:2880

約数の個数: 80

約数和(自身を含む): 385665792

約数和(自身を除く): 261945072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 193, 240, 386, 579, 772, 965, 1158, 1544, 1930, 2316, 2671, 2895, 3088, 3860, 4632, 5342, 5790, 7720, 8013, 9264, 10684, 11580, 13355, 15440, 16026, 21368, 23160, 26710, 32052, 40065, 42736, 46320, 53420, 64104, 80130, 106840, 128208, 160260, 213680, 320520, 515503, 641040, 1031006, 1546509, 2062012, 2577515, 3093018, 4124024, 5155030, 6186036, 7732545, 8248048, 10310060, 12372072, 15465090, 20620120, 24744144, 30930180, 41240240, 61860360, 123720720]

約数ペア:

[(1, 123720720), (2, 61860360), (3, 41240240), (4, 30930180), (5, 24744144), (6, 20620120), (8, 15465090), (10, 12372072), (12, 10310060), (15, 8248048), (16, 7732545), (20, 6186036), (24, 5155030), (30, 4124024), (40, 3093018), (48, 2577515), (60, 2062012), (80, 1546509), (120, 1031006), (193, 641040), (240, 515503), (386, 320520), (579, 213680), (772, 160260), (965, 128208), (1158, 106840), (1544, 80130), (1930, 64104), (2316, 53420), (2671, 46320), (2895, 42736), (3088, 40065), (3860, 32052), (4632, 26710), (5342, 23160), (5790, 21368), (7720, 16026), (8013, 15440), (9264, 13355), (10684, 11580)]