18992960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 112

約数和(自身を含む): 52913280

約数和(自身を除く): 33920320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 139, 140, 160, 224, 244, 278, 280, 305, 320, 427, 448, 488, 556, 560, 610, 695, 854, 973, 976, 1112, 1120, 1220, 1390, 1708, 1946, 1952, 2135, 2224, 2240, 2440, 2780, 3416, 3892, 3904, 4270, 4448, 4865, 4880, 5560, 6832, 7784, 8479, 8540, 8896, 9730, 9760, 11120, 13664, 15568, 16958, 17080, 19460, 19520, 22240, 27328, 31136, 33916, 34160, 38920, 42395, 44480, 59353, 62272, 67832, 68320, 77840, 84790, 118706, 135664, 136640, 155680, 169580, 237412, 271328, 296765, 311360, 339160, 474824, 542656, 593530, 678320, 949648, 1187060, 1356640, 1899296, 2374120, 2713280, 3798592, 4748240, 9496480, 18992960]

約数ペア:

[(1, 18992960), (2, 9496480), (4, 4748240), (5, 3798592), (7, 2713280), (8, 2374120), (10, 1899296), (14, 1356640), (16, 1187060), (20, 949648), (28, 678320), (32, 593530), (35, 542656), (40, 474824), (56, 339160), (61, 311360), (64, 296765), (70, 271328), (80, 237412), (112, 169580), (122, 155680), (139, 136640), (140, 135664), (160, 118706), (224, 84790), (244, 77840), (278, 68320), (280, 67832), (305, 62272), (320, 59353), (427, 44480), (448, 42395), (488, 38920), (556, 34160), (560, 33916), (610, 31136), (695, 27328), (854, 22240), (973, 19520), (976, 19460), (1112, 17080), (1120, 16958), (1220, 15568), (1390, 13664), (1708, 11120), (1946, 9760), (1952, 9730), (2135, 8896), (2224, 8540), (2240, 8479), (2440, 7784), (2780, 6832), (3416, 5560), (3892, 4880), (3904, 4865), (4270, 4448)]