18041940

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 240

約数和(自身を含む): 67976832

約数和(自身を除く): 49934892

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 43, 45, 54, 60, 63, 70, 74, 81, 84, 86, 90, 105, 108, 111, 126, 129, 135, 140, 148, 162, 172, 180, 185, 189, 210, 215, 222, 252, 258, 259, 270, 301, 315, 324, 333, 370, 378, 387, 405, 420, 430, 444, 516, 518, 540, 555, 567, 602, 630, 645, 666, 740, 756, 774, 777, 810, 860, 903, 945, 999, 1036, 1110, 1134, 1161, 1204, 1260, 1290, 1295, 1332, 1505, 1548, 1554, 1591, 1620, 1665, 1806, 1890, 1935, 1998, 2220, 2268, 2322, 2331, 2580, 2590, 2709, 2835, 2997, 3010, 3108, 3182, 3330, 3483, 3612, 3780, 3870, 3885, 3996, 4515, 4644, 4662, 4773, 4995, 5180, 5418, 5670, 5805, 5994, 6020, 6364, 6660, 6966, 6993, 7740, 7770, 7955, 8127, 9030, 9324, 9546, 9990, 10836, 11137, 11340, 11610, 11655, 11988, 13545, 13932, 13986, 14319, 14985, 15540, 15910, 16254, 17415, 18060, 19092, 19980, 20979, 22274, 23220, 23310, 23865, 24381, 27090, 27972, 28638, 29970, 31820, 32508, 33411, 34830, 34965, 40635, 41958, 42957, 44548, 46620, 47730, 48762, 54180, 55685, 57276, 59940, 66822, 69660, 69930, 71595, 81270, 83916, 85914, 95460, 97524, 100233, 104895, 111370, 121905, 128871, 133644, 139860, 143190, 162540, 167055, 171828, 200466, 209790, 214785, 222740, 243810, 257742, 286380, 300699, 334110, 400932, 419580, 429570, 487620, 501165, 515484, 601398, 644355, 668220, 859140, 902097, 1002330, 1202796, 1288710, 1503495, 1804194, 2004660, 2577420, 3006990, 3608388, 4510485, 6013980, 9020970, 18041940]

約数ペア:

[(1, 18041940), (2, 9020970), (3, 6013980), (4, 4510485), (5, 3608388), (6, 3006990), (7, 2577420), (9, 2004660), (10, 1804194), (12, 1503495), (14, 1288710), (15, 1202796), (18, 1002330), (20, 902097), (21, 859140), (27, 668220), (28, 644355), (30, 601398), (35, 515484), (36, 501165), (37, 487620), (42, 429570), (43, 419580), (45, 400932), (54, 334110), (60, 300699), (63, 286380), (70, 257742), (74, 243810), (81, 222740), (84, 214785), (86, 209790), (90, 200466), (105, 171828), (108, 167055), (111, 162540), (126, 143190), (129, 139860), (135, 133644), (140, 128871), (148, 121905), (162, 111370), (172, 104895), (180, 100233), (185, 97524), (189, 95460), (210, 85914), (215, 83916), (222, 81270), (252, 71595), (258, 69930), (259, 69660), (270, 66822), (301, 59940), (315, 57276), (324, 55685), (333, 54180), (370, 48762), (378, 47730), (387, 46620), (405, 44548), (420, 42957), (430, 41958), (444, 40635), (516, 34965), (518, 34830), (540, 33411), (555, 32508), (567, 31820), (602, 29970), (630, 28638), (645, 27972), (666, 27090), (740, 24381), (756, 23865), (774, 23310), (777, 23220), (810, 22274), (860, 20979), (903, 19980), (945, 19092), (999, 18060), (1036, 17415), (1110, 16254), (1134, 15910), (1161, 15540), (1204, 14985), (1260, 14319), (1290, 13986), (1295, 13932), (1332, 13545), (1505, 11988), (1548, 11655), (1554, 11610), (1591, 11340), (1620, 11137), (1665, 10836), (1806, 9990), (1890, 9546), (1935, 9324), (1998, 9030), (2220, 8127), (2268, 7955), (2322, 7770), (2331, 7740), (2580, 6993), (2590, 6966), (2709, 6660), (2835, 6364), (2997, 6020), (3010, 5994), (3108, 5805), (3182, 5670), (3330, 5418), (3483, 5180), (3612, 4995), (3780, 4773), (3870, 4662), (3885, 4644), (3996, 4515)]