20039940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:131

約数の個数: 192

約数和(自身を含む): 68947200

約数和(自身を除く): 48907260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 37, 45, 51, 54, 59, 60, 68, 74, 85, 90, 102, 108, 111, 118, 135, 148, 153, 170, 177, 180, 185, 204, 222, 236, 255, 270, 295, 306, 333, 340, 354, 370, 444, 459, 510, 531, 540, 555, 590, 612, 629, 666, 708, 740, 765, 885, 918, 999, 1003, 1020, 1062, 1110, 1180, 1258, 1332, 1530, 1593, 1665, 1770, 1836, 1887, 1998, 2006, 2124, 2183, 2220, 2295, 2516, 2655, 3009, 3060, 3145, 3186, 3330, 3540, 3774, 3996, 4012, 4366, 4590, 4995, 5015, 5310, 5661, 6018, 6290, 6372, 6549, 6660, 7548, 7965, 8732, 9027, 9180, 9435, 9990, 10030, 10620, 10915, 11322, 12036, 12580, 13098, 15045, 15930, 16983, 18054, 18870, 19647, 19980, 20060, 21830, 22644, 26196, 27081, 28305, 30090, 31860, 32745, 33966, 36108, 37111, 37740, 39294, 43660, 45135, 54162, 56610, 58941, 60180, 65490, 67932, 74222, 78588, 84915, 90270, 98235, 108324, 111333, 113220, 117882, 130980, 135405, 148444, 169830, 180540, 185555, 196470, 222666, 235764, 270810, 294705, 333999, 339660, 371110, 392940, 445332, 541620, 556665, 589410, 667998, 742220, 1001997, 1113330, 1178820, 1335996, 1669995, 2003994, 2226660, 3339990, 4007988, 5009985, 6679980, 10019970, 20039940]

約数ペア:

[(1, 20039940), (2, 10019970), (3, 6679980), (4, 5009985), (5, 4007988), (6, 3339990), (9, 2226660), (10, 2003994), (12, 1669995), (15, 1335996), (17, 1178820), (18, 1113330), (20, 1001997), (27, 742220), (30, 667998), (34, 589410), (36, 556665), (37, 541620), (45, 445332), (51, 392940), (54, 371110), (59, 339660), (60, 333999), (68, 294705), (74, 270810), (85, 235764), (90, 222666), (102, 196470), (108, 185555), (111, 180540), (118, 169830), (135, 148444), (148, 135405), (153, 130980), (170, 117882), (177, 113220), (180, 111333), (185, 108324), (204, 98235), (222, 90270), (236, 84915), (255, 78588), (270, 74222), (295, 67932), (306, 65490), (333, 60180), (340, 58941), (354, 56610), (370, 54162), (444, 45135), (459, 43660), (510, 39294), (531, 37740), (540, 37111), (555, 36108), (590, 33966), (612, 32745), (629, 31860), (666, 30090), (708, 28305), (740, 27081), (765, 26196), (885, 22644), (918, 21830), (999, 20060), (1003, 19980), (1020, 19647), (1062, 18870), (1110, 18054), (1180, 16983), (1258, 15930), (1332, 15045), (1530, 13098), (1593, 12580), (1665, 12036), (1770, 11322), (1836, 10915), (1887, 10620), (1998, 10030), (2006, 9990), (2124, 9435), (2183, 9180), (2220, 9027), (2295, 8732), (2516, 7965), (2655, 7548), (3009, 6660), (3060, 6549), (3145, 6372), (3186, 6290), (3330, 6018), (3540, 5661), (3774, 5310), (3996, 5015), (4012, 4995), (4366, 4590)]