30878540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20051}}^1$

素因数の和:20078

約数の個数: 48

約数和(自身を含む): 80849664

約数和(自身を除く): 49971124

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, 20051, 40102, 80204, 100255, 140357, 200510, 220561, 280714, 401020, 441122, 561428, 701785, 882244, 1102805, 1403570, 1543927, 2205610, 2807140, 3087854, 4411220, 6175708, 7719635, 15439270, 30878540]

約数ペア:

[(1, 30878540), (2, 15439270), (4, 7719635), (5, 6175708), (7, 4411220), (10, 3087854), (11, 2807140), (14, 2205610), (20, 1543927), (22, 1403570), (28, 1102805), (35, 882244), (44, 701785), (55, 561428), (70, 441122), (77, 401020), (110, 280714), (140, 220561), (154, 200510), (220, 140357), (308, 100255), (385, 80204), (770, 40102), (1540, 20051)]