31405220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20393}}^1$

素因数の和:20420

約数の個数: 48

約数和(自身を含む): 82228608

約数和(自身を除く): 50823388

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 20393, 40786, 81572, 101965, 142751, 203930, 224323, 285502, 407860, 448646, 571004, 713755, 897292, 1121615, 1427510, 1570261, 2243230, 2855020, 3140522, 4486460, 6281044, 7851305, 15702610, 31405220]

約数ペア:

[(1, 31405220), (2, 15702610), (4, 7851305), (5, 6281044), (7, 4486460), (10, 3140522), (11, 2855020), (14, 2243230), (20, 1570261), (22, 1427510), (28, 1121615), (35, 897292), (44, 713755), (55, 571004), (70, 448646), (77, 407860), (110, 285502), (140, 224323), (154, 203930), (220, 142751), (308, 101965), (385, 81572), (770, 40786), (1540, 20393)]