251213088

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{389}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 780736320

約数和(自身を除く): 529523232

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 84, 93, 96, 112, 124, 168, 186, 217, 224, 248, 336, 372, 389, 434, 496, 651, 672, 744, 778, 868, 961, 992, 1167, 1302, 1488, 1556, 1736, 1922, 2334, 2604, 2723, 2883, 2976, 3112, 3472, 3844, 4668, 5208, 5446, 5766, 6224, 6727, 6944, 7688, 8169, 9336, 10416, 10892, 11532, 12059, 12448, 13454, 15376, 16338, 18672, 20181, 20832, 21784, 23064, 24118, 26908, 30752, 32676, 36177, 37344, 40362, 43568, 46128, 48236, 53816, 65352, 72354, 80724, 84413, 87136, 92256, 96472, 107632, 130704, 144708, 161448, 168826, 192944, 215264, 253239, 261408, 289416, 322896, 337652, 373829, 385888, 506478, 578832, 645792, 675304, 747658, 1012956, 1121487, 1157664, 1350608, 1495316, 2025912, 2242974, 2616803, 2701216, 2990632, 4051824, 4485948, 5233606, 5981264, 7850409, 8103648, 8971896, 10467212, 11962528, 15700818, 17943792, 20934424, 31401636, 35887584, 41868848, 62803272, 83737696, 125606544, 251213088]

約数ペア:

[(1, 251213088), (2, 125606544), (3, 83737696), (4, 62803272), (6, 41868848), (7, 35887584), (8, 31401636), (12, 20934424), (14, 17943792), (16, 15700818), (21, 11962528), (24, 10467212), (28, 8971896), (31, 8103648), (32, 7850409), (42, 5981264), (48, 5233606), (56, 4485948), (62, 4051824), (84, 2990632), (93, 2701216), (96, 2616803), (112, 2242974), (124, 2025912), (168, 1495316), (186, 1350608), (217, 1157664), (224, 1121487), (248, 1012956), (336, 747658), (372, 675304), (389, 645792), (434, 578832), (496, 506478), (651, 385888), (672, 373829), (744, 337652), (778, 322896), (868, 289416), (961, 261408), (992, 253239), (1167, 215264), (1302, 192944), (1488, 168826), (1556, 161448), (1736, 144708), (1922, 130704), (2334, 107632), (2604, 96472), (2723, 92256), (2883, 87136), (2976, 84413), (3112, 80724), (3472, 72354), (3844, 65352), (4668, 53816), (5208, 48236), (5446, 46128), (5766, 43568), (6224, 40362), (6727, 37344), (6944, 36177), (7688, 32676), (8169, 30752), (9336, 26908), (10416, 24118), (10892, 23064), (11532, 21784), (12059, 20832), (12448, 20181), (13454, 18672), (15376, 16338)]