20147175920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{41813}}^1$

素因数の和:42162

約数の個数: 80

約数和(自身を含む): 49464289440

約数和(自身を除く): 29317113520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 317, 380, 634, 760, 1268, 1520, 1585, 2536, 3170, 5072, 6023, 6340, 12046, 12680, 24092, 25360, 30115, 41813, 48184, 60230, 83626, 96368, 120460, 167252, 209065, 240920, 334504, 418130, 481840, 669008, 794447, 836260, 1588894, 1672520, 3177788, 3345040, 3972235, 6355576, 7944470, 12711152, 13254721, 15888940, 26509442, 31777880, 53018884, 63555760, 66273605, 106037768, 132547210, 212075536, 251839699, 265094420, 503679398, 530188840, 1007358796, 1060377680, 1259198495, 2014717592, 2518396990, 4029435184, 5036793980, 10073587960, 20147175920]

約数ペア:

[(1, 20147175920), (2, 10073587960), (4, 5036793980), (5, 4029435184), (8, 2518396990), (10, 2014717592), (16, 1259198495), (19, 1060377680), (20, 1007358796), (38, 530188840), (40, 503679398), (76, 265094420), (80, 251839699), (95, 212075536), (152, 132547210), (190, 106037768), (304, 66273605), (317, 63555760), (380, 53018884), (634, 31777880), (760, 26509442), (1268, 15888940), (1520, 13254721), (1585, 12711152), (2536, 7944470), (3170, 6355576), (5072, 3972235), (6023, 3345040), (6340, 3177788), (12046, 1672520), (12680, 1588894), (24092, 836260), (25360, 794447), (30115, 669008), (41813, 481840), (48184, 418130), (60230, 334504), (83626, 240920), (96368, 209065), (120460, 167252)]