389645990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{20411}}^1$

素因数の和:20524

約数の個数: 32

約数和(自身を含む): 740710656

約数和(自身を除く): 351064666

約数列:

[1, 2, 5, 10, 23, 46, 83, 115, 166, 230, 415, 830, 1909, 3818, 9545, 19090, 20411, 40822, 102055, 204110, 469453, 938906, 1694113, 2347265, 3388226, 4694530, 8470565, 16941130, 38964599, 77929198, 194822995, 389645990]

約数ペア:

[(1, 389645990), (2, 194822995), (5, 77929198), (10, 38964599), (23, 16941130), (46, 8470565), (83, 4694530), (115, 3388226), (166, 2347265), (230, 1694113), (415, 938906), (830, 469453), (1909, 204110), (3818, 102055), (9545, 40822), (19090, 20411)]