18916920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1$

素因数の和:326

約数の個数: 192

約数和(自身を含む): 71267040

約数和(自身を除く): 52350120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 17, 18, 20, 22, 24, 30, 33, 34, 36, 40, 44, 45, 51, 55, 60, 66, 68, 72, 85, 88, 90, 99, 102, 110, 120, 132, 136, 153, 165, 170, 180, 187, 198, 204, 220, 255, 264, 281, 306, 330, 340, 360, 374, 396, 408, 440, 495, 510, 561, 562, 612, 660, 680, 748, 765, 792, 843, 935, 990, 1020, 1122, 1124, 1224, 1320, 1405, 1496, 1530, 1683, 1686, 1870, 1980, 2040, 2244, 2248, 2529, 2805, 2810, 3060, 3091, 3366, 3372, 3740, 3960, 4215, 4488, 4777, 5058, 5610, 5620, 6120, 6182, 6732, 6744, 7480, 8415, 8430, 9273, 9554, 10116, 11220, 11240, 12364, 12645, 13464, 14331, 15455, 16830, 16860, 18546, 19108, 20232, 22440, 23885, 24728, 25290, 27819, 28662, 30910, 33660, 33720, 37092, 38216, 42993, 46365, 47770, 50580, 52547, 55638, 57324, 61820, 67320, 71655, 74184, 85986, 92730, 95540, 101160, 105094, 111276, 114648, 123640, 139095, 143310, 157641, 171972, 185460, 191080, 210188, 214965, 222552, 262735, 278190, 286620, 315282, 343944, 370920, 420376, 429930, 472923, 525470, 556380, 573240, 630564, 788205, 859860, 945846, 1050940, 1112760, 1261128, 1576410, 1719720, 1891692, 2101880, 2364615, 3152820, 3783384, 4729230, 6305640, 9458460, 18916920]

約数ペア:

[(1, 18916920), (2, 9458460), (3, 6305640), (4, 4729230), (5, 3783384), (6, 3152820), (8, 2364615), (9, 2101880), (10, 1891692), (11, 1719720), (12, 1576410), (15, 1261128), (17, 1112760), (18, 1050940), (20, 945846), (22, 859860), (24, 788205), (30, 630564), (33, 573240), (34, 556380), (36, 525470), (40, 472923), (44, 429930), (45, 420376), (51, 370920), (55, 343944), (60, 315282), (66, 286620), (68, 278190), (72, 262735), (85, 222552), (88, 214965), (90, 210188), (99, 191080), (102, 185460), (110, 171972), (120, 157641), (132, 143310), (136, 139095), (153, 123640), (165, 114648), (170, 111276), (180, 105094), (187, 101160), (198, 95540), (204, 92730), (220, 85986), (255, 74184), (264, 71655), (281, 67320), (306, 61820), (330, 57324), (340, 55638), (360, 52547), (374, 50580), (396, 47770), (408, 46365), (440, 42993), (495, 38216), (510, 37092), (561, 33720), (562, 33660), (612, 30910), (660, 28662), (680, 27819), (748, 25290), (765, 24728), (792, 23885), (843, 22440), (935, 20232), (990, 19108), (1020, 18546), (1122, 16860), (1124, 16830), (1224, 15455), (1320, 14331), (1405, 13464), (1496, 12645), (1530, 12364), (1683, 11240), (1686, 11220), (1870, 10116), (1980, 9554), (2040, 9273), (2244, 8430), (2248, 8415), (2529, 7480), (2805, 6744), (2810, 6732), (3060, 6182), (3091, 6120), (3366, 5620), (3372, 5610), (3740, 5058), (3960, 4777), (4215, 4488)]