19401120

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{499}}^1$

素因数の和:529

約数の個数: 144

約数和(自身を含む): 68796000

約数和(自身を除く): 49394880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 499, 540, 648, 720, 810, 864, 972, 998, 1080, 1215, 1296, 1440, 1497, 1620, 1944, 1996, 2160, 2430, 2495, 2592, 2994, 3240, 3888, 3992, 4320, 4491, 4860, 4990, 5988, 6480, 7485, 7776, 7984, 8982, 9720, 9980, 11976, 12960, 13473, 14970, 15968, 17964, 19440, 19960, 22455, 23952, 26946, 29940, 35928, 38880, 39920, 40419, 44910, 47904, 53892, 59880, 67365, 71856, 79840, 80838, 89820, 107784, 119760, 121257, 134730, 143712, 161676, 179640, 202095, 215568, 239520, 242514, 269460, 323352, 359280, 404190, 431136, 485028, 538920, 606285, 646704, 718560, 808380, 970056, 1077840, 1212570, 1293408, 1616760, 1940112, 2155680, 2425140, 3233520, 3880224, 4850280, 6467040, 9700560, 19401120]

約数ペア:

[(1, 19401120), (2, 9700560), (3, 6467040), (4, 4850280), (5, 3880224), (6, 3233520), (8, 2425140), (9, 2155680), (10, 1940112), (12, 1616760), (15, 1293408), (16, 1212570), (18, 1077840), (20, 970056), (24, 808380), (27, 718560), (30, 646704), (32, 606285), (36, 538920), (40, 485028), (45, 431136), (48, 404190), (54, 359280), (60, 323352), (72, 269460), (80, 242514), (81, 239520), (90, 215568), (96, 202095), (108, 179640), (120, 161676), (135, 143712), (144, 134730), (160, 121257), (162, 119760), (180, 107784), (216, 89820), (240, 80838), (243, 79840), (270, 71856), (288, 67365), (324, 59880), (360, 53892), (405, 47904), (432, 44910), (480, 40419), (486, 39920), (499, 38880), (540, 35928), (648, 29940), (720, 26946), (810, 23952), (864, 22455), (972, 19960), (998, 19440), (1080, 17964), (1215, 15968), (1296, 14970), (1440, 13473), (1497, 12960), (1620, 11976), (1944, 9980), (1996, 9720), (2160, 8982), (2430, 7984), (2495, 7776), (2592, 7485), (2994, 6480), (3240, 5988), (3888, 4990), (3992, 4860), (4320, 4491)]