28031940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 192

約数和(自身を含む): 94993920

約数和(自身を除く): 66961980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 37, 45, 46, 54, 60, 61, 69, 74, 90, 92, 108, 111, 115, 122, 135, 138, 148, 180, 183, 185, 207, 222, 230, 244, 270, 276, 305, 333, 345, 366, 370, 414, 444, 460, 540, 549, 555, 610, 621, 666, 690, 732, 740, 828, 851, 915, 999, 1035, 1098, 1110, 1220, 1242, 1332, 1380, 1403, 1647, 1665, 1702, 1830, 1998, 2070, 2196, 2220, 2257, 2484, 2553, 2745, 2806, 3105, 3294, 3330, 3404, 3660, 3996, 4140, 4209, 4255, 4514, 4995, 5106, 5490, 5612, 6210, 6588, 6660, 6771, 7015, 7659, 8235, 8418, 8510, 9028, 9990, 10212, 10980, 11285, 12420, 12627, 12765, 13542, 14030, 15318, 16470, 16836, 17020, 19980, 20313, 21045, 22570, 22977, 25254, 25530, 27084, 28060, 30636, 32940, 33855, 37881, 38295, 40626, 42090, 45140, 45954, 50508, 51060, 51911, 60939, 63135, 67710, 75762, 76590, 81252, 84180, 91908, 101565, 103822, 114885, 121878, 126270, 135420, 151524, 153180, 155733, 189405, 203130, 207644, 229770, 243756, 252540, 259555, 304695, 311466, 378810, 406260, 459540, 467199, 519110, 609390, 622932, 757620, 778665, 934398, 1038220, 1218780, 1401597, 1557330, 1868796, 2335995, 2803194, 3114660, 4671990, 5606388, 7007985, 9343980, 14015970, 28031940]

約数ペア:

[(1, 28031940), (2, 14015970), (3, 9343980), (4, 7007985), (5, 5606388), (6, 4671990), (9, 3114660), (10, 2803194), (12, 2335995), (15, 1868796), (18, 1557330), (20, 1401597), (23, 1218780), (27, 1038220), (30, 934398), (36, 778665), (37, 757620), (45, 622932), (46, 609390), (54, 519110), (60, 467199), (61, 459540), (69, 406260), (74, 378810), (90, 311466), (92, 304695), (108, 259555), (111, 252540), (115, 243756), (122, 229770), (135, 207644), (138, 203130), (148, 189405), (180, 155733), (183, 153180), (185, 151524), (207, 135420), (222, 126270), (230, 121878), (244, 114885), (270, 103822), (276, 101565), (305, 91908), (333, 84180), (345, 81252), (366, 76590), (370, 75762), (414, 67710), (444, 63135), (460, 60939), (540, 51911), (549, 51060), (555, 50508), (610, 45954), (621, 45140), (666, 42090), (690, 40626), (732, 38295), (740, 37881), (828, 33855), (851, 32940), (915, 30636), (999, 28060), (1035, 27084), (1098, 25530), (1110, 25254), (1220, 22977), (1242, 22570), (1332, 21045), (1380, 20313), (1403, 19980), (1647, 17020), (1665, 16836), (1702, 16470), (1830, 15318), (1998, 14030), (2070, 13542), (2196, 12765), (2220, 12627), (2257, 12420), (2484, 11285), (2553, 10980), (2745, 10212), (2806, 9990), (3105, 9028), (3294, 8510), (3330, 8418), (3404, 8235), (3660, 7659), (3996, 7015), (4140, 6771), (4209, 6660), (4255, 6588), (4514, 6210), (4995, 5612), (5106, 5490)]