208434580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1\times {\mathrm{409}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 445515840

約数和(自身を除く): 237081260

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 307, 332, 409, 415, 614, 818, 830, 1228, 1535, 1636, 1660, 2045, 3070, 4090, 6140, 8180, 25481, 33947, 50962, 67894, 101924, 125563, 127405, 135788, 169735, 251126, 254810, 339470, 502252, 509620, 627815, 678940, 1255630, 2511260, 10421729, 20843458, 41686916, 52108645, 104217290, 208434580]

約数ペア:

[(1, 208434580), (2, 104217290), (4, 52108645), (5, 41686916), (10, 20843458), (20, 10421729), (83, 2511260), (166, 1255630), (307, 678940), (332, 627815), (409, 509620), (415, 502252), (614, 339470), (818, 254810), (830, 251126), (1228, 169735), (1535, 135788), (1636, 127405), (1660, 125563), (2045, 101924), (3070, 67894), (4090, 50962), (6140, 33947), (8180, 25481)]