17982580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11677}}^1$

素因数の和:11704

約数の個数: 48

約数和(自身を含む): 47085696

約数和(自身を除く): 29103116

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, 11677, 23354, 46708, 58385, 81739, 116770, 128447, 163478, 233540, 256894, 326956, 408695, 513788, 642235, 817390, 899129, 1284470, 1634780, 1798258, 2568940, 3596516, 4495645, 8991290, 17982580]

約数ペア:

[(1, 17982580), (2, 8991290), (4, 4495645), (5, 3596516), (7, 2568940), (10, 1798258), (11, 1634780), (14, 1284470), (20, 899129), (22, 817390), (28, 642235), (35, 513788), (44, 408695), (55, 326956), (70, 256894), (77, 233540), (110, 163478), (140, 128447), (154, 116770), (220, 81739), (308, 58385), (385, 46708), (770, 23354), (1540, 11677)]