20180559835

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{240059}}^1$

素因数の和:240147

約数の個数: 32

約数和(自身を含む): 27378362880

約数和(自身を除く): 7197803045

約数列:

[1, 5, 17, 23, 43, 85, 115, 215, 391, 731, 989, 1955, 3655, 4945, 16813, 84065, 240059, 1200295, 4081003, 5521357, 10322537, 20405015, 27606785, 51612685, 93863069, 175483129, 237418351, 469315345, 877415645, 1187091755, 4036111967, 20180559835]

約数ペア:

[(1, 20180559835), (5, 4036111967), (17, 1187091755), (23, 877415645), (43, 469315345), (85, 237418351), (115, 175483129), (215, 93863069), (391, 51612685), (731, 27606785), (989, 20405015), (1955, 10322537), (3655, 5521357), (4945, 4081003), (16813, 1200295), (84065, 240059)]