69090980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{70501}}^1$

素因数の和:70524

約数の個数: 36

約数和(自身を含む): 168781788

約数和(自身を除く): 99690808

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 70501, 141002, 282004, 352505, 493507, 705010, 987014, 1410020, 1974028, 2467535, 3454549, 4935070, 6909098, 9870140, 13818196, 17272745, 34545490, 69090980]

約数ペア:

[(1, 69090980), (2, 34545490), (4, 17272745), (5, 13818196), (7, 9870140), (10, 6909098), (14, 4935070), (20, 3454549), (28, 2467535), (35, 1974028), (49, 1410020), (70, 987014), (98, 705010), (140, 493507), (196, 352505), (245, 282004), (490, 141002), (980, 70501)]