18563662840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1\times {\mathrm{18517}}^1$

素因数の和:18952

約数の個数: 64

約数和(自身を含む): 42478810560

約数和(自身を除く): 23915147720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 353, 355, 568, 706, 710, 1412, 1420, 1765, 2824, 2840, 3530, 7060, 14120, 18517, 25063, 37034, 50126, 74068, 92585, 100252, 125315, 148136, 185170, 200504, 250630, 370340, 501260, 740680, 1002520, 1314707, 2629414, 5258828, 6536501, 6573535, 10517656, 13073002, 13147070, 26146004, 26294140, 32682505, 52292008, 52588280, 65365010, 130730020, 261460040, 464091571, 928183142, 1856366284, 2320457855, 3712732568, 4640915710, 9281831420, 18563662840]

約数ペア:

[(1, 18563662840), (2, 9281831420), (4, 4640915710), (5, 3712732568), (8, 2320457855), (10, 1856366284), (20, 928183142), (40, 464091571), (71, 261460040), (142, 130730020), (284, 65365010), (353, 52588280), (355, 52292008), (568, 32682505), (706, 26294140), (710, 26146004), (1412, 13147070), (1420, 13073002), (1765, 10517656), (2824, 6573535), (2840, 6536501), (3530, 5258828), (7060, 2629414), (14120, 1314707), (18517, 1002520), (25063, 740680), (37034, 501260), (50126, 370340), (74068, 250630), (92585, 200504), (100252, 185170), (125315, 148136)]