80451700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 219985920

約数和(自身を除く): 139534220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 23, 25, 28, 35, 38, 46, 50, 70, 76, 92, 95, 100, 115, 133, 140, 161, 175, 190, 230, 263, 266, 322, 350, 380, 437, 460, 475, 526, 532, 575, 644, 665, 700, 805, 874, 950, 1052, 1150, 1315, 1330, 1610, 1748, 1841, 1900, 2185, 2300, 2630, 2660, 3059, 3220, 3325, 3682, 4025, 4370, 4997, 5260, 6049, 6118, 6575, 6650, 7364, 8050, 8740, 9205, 9994, 10925, 12098, 12236, 13150, 13300, 15295, 16100, 18410, 19988, 21850, 24196, 24985, 26300, 30245, 30590, 34979, 36820, 42343, 43700, 46025, 49970, 60490, 61180, 69958, 76475, 84686, 92050, 99940, 114931, 120980, 124925, 139916, 151225, 152950, 169372, 174895, 184100, 211715, 229862, 249850, 302450, 305900, 349790, 423430, 459724, 499700, 574655, 604900, 699580, 804517, 846860, 874475, 1058575, 1149310, 1609034, 1748950, 2117150, 2298620, 2873275, 3218068, 3497900, 4022585, 4234300, 5746550, 8045170, 11493100, 16090340, 20112925, 40225850, 80451700]

約数ペア:

[(1, 80451700), (2, 40225850), (4, 20112925), (5, 16090340), (7, 11493100), (10, 8045170), (14, 5746550), (19, 4234300), (20, 4022585), (23, 3497900), (25, 3218068), (28, 2873275), (35, 2298620), (38, 2117150), (46, 1748950), (50, 1609034), (70, 1149310), (76, 1058575), (92, 874475), (95, 846860), (100, 804517), (115, 699580), (133, 604900), (140, 574655), (161, 499700), (175, 459724), (190, 423430), (230, 349790), (263, 305900), (266, 302450), (322, 249850), (350, 229862), (380, 211715), (437, 184100), (460, 174895), (475, 169372), (526, 152950), (532, 151225), (575, 139916), (644, 124925), (665, 120980), (700, 114931), (805, 99940), (874, 92050), (950, 84686), (1052, 76475), (1150, 69958), (1315, 61180), (1330, 60490), (1610, 49970), (1748, 46025), (1841, 43700), (1900, 42343), (2185, 36820), (2300, 34979), (2630, 30590), (2660, 30245), (3059, 26300), (3220, 24985), (3325, 24196), (3682, 21850), (4025, 19988), (4370, 18410), (4997, 16100), (5260, 15295), (6049, 13300), (6118, 13150), (6575, 12236), (6650, 12098), (7364, 10925), (8050, 9994), (8740, 9205)]