99680020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 240299136

約数和(自身を除く): 140619116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 43, 44, 55, 82, 86, 110, 164, 172, 205, 215, 220, 257, 410, 430, 451, 473, 514, 820, 860, 902, 946, 1028, 1285, 1763, 1804, 1892, 2255, 2365, 2570, 2827, 3526, 4510, 4730, 5140, 5654, 7052, 8815, 9020, 9460, 10537, 11051, 11308, 14135, 17630, 19393, 21074, 22102, 28270, 35260, 38786, 42148, 44204, 52685, 55255, 56540, 77572, 96965, 105370, 110510, 115907, 121561, 193930, 210740, 221020, 231814, 243122, 387860, 453091, 463628, 486244, 579535, 607805, 906182, 1159070, 1215610, 1812364, 2265455, 2318140, 2431220, 4530910, 4984001, 9061820, 9968002, 19936004, 24920005, 49840010, 99680020]

約数ペア:

[(1, 99680020), (2, 49840010), (4, 24920005), (5, 19936004), (10, 9968002), (11, 9061820), (20, 4984001), (22, 4530910), (41, 2431220), (43, 2318140), (44, 2265455), (55, 1812364), (82, 1215610), (86, 1159070), (110, 906182), (164, 607805), (172, 579535), (205, 486244), (215, 463628), (220, 453091), (257, 387860), (410, 243122), (430, 231814), (451, 221020), (473, 210740), (514, 193930), (820, 121561), (860, 115907), (902, 110510), (946, 105370), (1028, 96965), (1285, 77572), (1763, 56540), (1804, 55255), (1892, 52685), (2255, 44204), (2365, 42148), (2570, 38786), (2827, 35260), (3526, 28270), (4510, 22102), (4730, 21074), (5140, 19393), (5654, 17630), (7052, 14135), (8815, 11308), (9020, 11051), (9460, 10537)]