16618840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 44528400

約数和(自身を除く): 27909560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 139, 140, 196, 244, 245, 278, 280, 305, 392, 427, 488, 490, 556, 610, 695, 854, 973, 980, 1112, 1220, 1390, 1708, 1946, 1960, 2135, 2440, 2780, 2989, 3416, 3892, 4270, 4865, 5560, 5978, 6811, 7784, 8479, 8540, 9730, 11956, 13622, 14945, 16958, 17080, 19460, 23912, 27244, 29890, 33916, 34055, 38920, 42395, 54488, 59353, 59780, 67832, 68110, 84790, 118706, 119560, 136220, 169580, 237412, 272440, 296765, 339160, 415471, 474824, 593530, 830942, 1187060, 1661884, 2077355, 2374120, 3323768, 4154710, 8309420, 16618840]

約数ペア:

[(1, 16618840), (2, 8309420), (4, 4154710), (5, 3323768), (7, 2374120), (8, 2077355), (10, 1661884), (14, 1187060), (20, 830942), (28, 593530), (35, 474824), (40, 415471), (49, 339160), (56, 296765), (61, 272440), (70, 237412), (98, 169580), (122, 136220), (139, 119560), (140, 118706), (196, 84790), (244, 68110), (245, 67832), (278, 59780), (280, 59353), (305, 54488), (392, 42395), (427, 38920), (488, 34055), (490, 33916), (556, 29890), (610, 27244), (695, 23912), (854, 19460), (973, 17080), (980, 16958), (1112, 14945), (1220, 13622), (1390, 11956), (1708, 9730), (1946, 8540), (1960, 8479), (2135, 7784), (2440, 6811), (2780, 5978), (2989, 5560), (3416, 4865), (3892, 4270)]