19874548880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2081}}^1\times {\mathrm{3851}}^1$

素因数の和:5976

約数の個数: 80

約数和(自身を含む): 47734230528

約数和(自身を除く): 27859681648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2081, 2480, 3851, 4162, 7702, 8324, 10405, 15404, 16648, 19255, 20810, 30808, 33296, 38510, 41620, 61616, 64511, 77020, 83240, 119381, 129022, 154040, 166480, 238762, 258044, 308080, 322555, 477524, 516088, 596905, 645110, 955048, 1032176, 1193810, 1290220, 1910096, 2387620, 2580440, 4775240, 5160880, 8013931, 9550480, 16027862, 32055724, 40069655, 64111448, 80139310, 128222896, 160278620, 248431861, 320557240, 496863722, 641114480, 993727444, 1242159305, 1987454888, 2484318610, 3974909776, 4968637220, 9937274440, 19874548880]

約数ペア:

[(1, 19874548880), (2, 9937274440), (4, 4968637220), (5, 3974909776), (8, 2484318610), (10, 1987454888), (16, 1242159305), (20, 993727444), (31, 641114480), (40, 496863722), (62, 320557240), (80, 248431861), (124, 160278620), (155, 128222896), (248, 80139310), (310, 64111448), (496, 40069655), (620, 32055724), (1240, 16027862), (2081, 9550480), (2480, 8013931), (3851, 5160880), (4162, 4775240), (7702, 2580440), (8324, 2387620), (10405, 1910096), (15404, 1290220), (16648, 1193810), (19255, 1032176), (20810, 955048), (30808, 645110), (33296, 596905), (38510, 516088), (41620, 477524), (61616, 322555), (64511, 308080), (77020, 258044), (83240, 238762), (119381, 166480), (129022, 154040)]