81310950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:419

約数の個数: 144

約数和(自身を含む): 253483776

約数和(自身を除く): 172172826

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 83, 90, 105, 126, 150, 166, 175, 210, 225, 249, 311, 315, 350, 415, 450, 498, 525, 581, 622, 630, 747, 830, 933, 1050, 1162, 1245, 1494, 1555, 1575, 1743, 1866, 2075, 2177, 2490, 2799, 2905, 3110, 3150, 3486, 3735, 4150, 4354, 4665, 5229, 5598, 5810, 6225, 6531, 7470, 7775, 8715, 9330, 10458, 10885, 12450, 13062, 13995, 14525, 15550, 17430, 18675, 19593, 21770, 23325, 25813, 26145, 27990, 29050, 32655, 37350, 39186, 43575, 46650, 51626, 52290, 54425, 65310, 69975, 77439, 87150, 97965, 108850, 129065, 130725, 139950, 154878, 163275, 180691, 195930, 232317, 258130, 261450, 326550, 361382, 387195, 464634, 489825, 542073, 645325, 774390, 903455, 979650, 1084146, 1161585, 1290650, 1626219, 1806910, 1935975, 2323170, 2710365, 3252438, 3871950, 4517275, 5420730, 5807925, 8131095, 9034550, 11615850, 13551825, 16262190, 27103650, 40655475, 81310950]

約数ペア:

[(1, 81310950), (2, 40655475), (3, 27103650), (5, 16262190), (6, 13551825), (7, 11615850), (9, 9034550), (10, 8131095), (14, 5807925), (15, 5420730), (18, 4517275), (21, 3871950), (25, 3252438), (30, 2710365), (35, 2323170), (42, 1935975), (45, 1806910), (50, 1626219), (63, 1290650), (70, 1161585), (75, 1084146), (83, 979650), (90, 903455), (105, 774390), (126, 645325), (150, 542073), (166, 489825), (175, 464634), (210, 387195), (225, 361382), (249, 326550), (311, 261450), (315, 258130), (350, 232317), (415, 195930), (450, 180691), (498, 163275), (525, 154878), (581, 139950), (622, 130725), (630, 129065), (747, 108850), (830, 97965), (933, 87150), (1050, 77439), (1162, 69975), (1245, 65310), (1494, 54425), (1555, 52290), (1575, 51626), (1743, 46650), (1866, 43575), (2075, 39186), (2177, 37350), (2490, 32655), (2799, 29050), (2905, 27990), (3110, 26145), (3150, 25813), (3486, 23325), (3735, 21770), (4150, 19593), (4354, 18675), (4665, 17430), (5229, 15550), (5598, 14525), (5810, 13995), (6225, 13062), (6531, 12450), (7470, 10885), (7775, 10458), (8715, 9330)]