280228520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{48991}}^1$

素因数の和:49026

約数の個数: 64

約数和(自身を含む): 740759040

約数和(自身を除く): 460530520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5720, 48991, 97982, 195964, 244955, 391928, 489910, 538901, 636883, 979820, 1077802, 1273766, 1959640, 2155604, 2547532, 2694505, 3184415, 4311208, 5095064, 5389010, 6368830, 7005713, 10778020, 12737660, 14011426, 21556040, 25475320, 28022852, 35028565, 56045704, 70057130, 140114260, 280228520]

約数ペア:

[(1, 280228520), (2, 140114260), (4, 70057130), (5, 56045704), (8, 35028565), (10, 28022852), (11, 25475320), (13, 21556040), (20, 14011426), (22, 12737660), (26, 10778020), (40, 7005713), (44, 6368830), (52, 5389010), (55, 5095064), (65, 4311208), (88, 3184415), (104, 2694505), (110, 2547532), (130, 2155604), (143, 1959640), (220, 1273766), (260, 1077802), (286, 979820), (440, 636883), (520, 538901), (572, 489910), (715, 391928), (1144, 244955), (1430, 195964), (2860, 97982), (5720, 48991)]