81798720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:772

約数の個数: 112

約数和(自身を含む): 262006080

約数和(自身を除く): 180207360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 139, 160, 192, 240, 278, 320, 417, 480, 556, 613, 695, 834, 960, 1112, 1226, 1390, 1668, 1839, 2085, 2224, 2452, 2780, 3065, 3336, 3678, 4170, 4448, 4904, 5560, 6130, 6672, 7356, 8340, 8896, 9195, 9808, 11120, 12260, 13344, 14712, 16680, 18390, 19616, 22240, 24520, 26688, 29424, 33360, 36780, 39232, 44480, 49040, 58848, 66720, 73560, 85207, 98080, 117696, 133440, 147120, 170414, 196160, 255621, 294240, 340828, 426035, 511242, 588480, 681656, 852070, 1022484, 1278105, 1363312, 1704140, 2044968, 2556210, 2726624, 3408280, 4089936, 5112420, 5453248, 6816560, 8179872, 10224840, 13633120, 16359744, 20449680, 27266240, 40899360, 81798720]

約数ペア:

[(1, 81798720), (2, 40899360), (3, 27266240), (4, 20449680), (5, 16359744), (6, 13633120), (8, 10224840), (10, 8179872), (12, 6816560), (15, 5453248), (16, 5112420), (20, 4089936), (24, 3408280), (30, 2726624), (32, 2556210), (40, 2044968), (48, 1704140), (60, 1363312), (64, 1278105), (80, 1022484), (96, 852070), (120, 681656), (139, 588480), (160, 511242), (192, 426035), (240, 340828), (278, 294240), (320, 255621), (417, 196160), (480, 170414), (556, 147120), (613, 133440), (695, 117696), (834, 98080), (960, 85207), (1112, 73560), (1226, 66720), (1390, 58848), (1668, 49040), (1839, 44480), (2085, 39232), (2224, 36780), (2452, 33360), (2780, 29424), (3065, 26688), (3336, 24520), (3678, 22240), (4170, 19616), (4448, 18390), (4904, 16680), (5560, 14712), (6130, 13344), (6672, 12260), (7356, 11120), (8340, 9808), (8896, 9195)]