218193640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2051

約数の個数: 128

約数和(自身を含む): 620213760

約数和(自身を除く): 402020120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 184, 230, 238, 280, 322, 340, 391, 460, 476, 595, 644, 680, 782, 805, 920, 952, 1190, 1288, 1564, 1610, 1955, 1993, 2380, 2737, 3128, 3220, 3910, 3986, 4760, 5474, 6440, 7820, 7972, 9965, 10948, 13685, 13951, 15640, 15944, 19930, 21896, 27370, 27902, 33881, 39860, 45839, 54740, 55804, 67762, 69755, 79720, 91678, 109480, 111608, 135524, 139510, 169405, 183356, 229195, 237167, 271048, 279020, 320873, 338810, 366712, 458390, 474334, 558040, 641746, 677620, 779263, 916780, 948668, 1185835, 1283492, 1355240, 1558526, 1604365, 1833560, 1897336, 2371670, 2566984, 3117052, 3208730, 3896315, 4743340, 5454841, 6234104, 6417460, 7792630, 9486680, 10909682, 12834920, 15585260, 21819364, 27274205, 31170520, 43638728, 54548410, 109096820, 218193640]

約数ペア:

[(1, 218193640), (2, 109096820), (4, 54548410), (5, 43638728), (7, 31170520), (8, 27274205), (10, 21819364), (14, 15585260), (17, 12834920), (20, 10909682), (23, 9486680), (28, 7792630), (34, 6417460), (35, 6234104), (40, 5454841), (46, 4743340), (56, 3896315), (68, 3208730), (70, 3117052), (85, 2566984), (92, 2371670), (115, 1897336), (119, 1833560), (136, 1604365), (140, 1558526), (161, 1355240), (170, 1283492), (184, 1185835), (230, 948668), (238, 916780), (280, 779263), (322, 677620), (340, 641746), (391, 558040), (460, 474334), (476, 458390), (595, 366712), (644, 338810), (680, 320873), (782, 279020), (805, 271048), (920, 237167), (952, 229195), (1190, 183356), (1288, 169405), (1564, 139510), (1610, 135524), (1955, 111608), (1993, 109480), (2380, 91678), (2737, 79720), (3128, 69755), (3220, 67762), (3910, 55804), (3986, 54740), (4760, 45839), (5474, 39860), (6440, 33881), (7820, 27902), (7972, 27370), (9965, 21896), (10948, 19930), (13685, 15944), (13951, 15640)]