28311660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 192

約数和(自身を含む): 98313600

約数和(自身を除く): 70001940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 37, 39, 45, 52, 54, 60, 65, 74, 78, 90, 108, 109, 111, 117, 130, 135, 148, 156, 180, 185, 195, 218, 222, 234, 260, 270, 327, 333, 351, 370, 390, 436, 444, 468, 481, 540, 545, 555, 585, 654, 666, 702, 740, 780, 962, 981, 999, 1090, 1110, 1170, 1308, 1332, 1404, 1417, 1443, 1635, 1665, 1755, 1924, 1962, 1998, 2180, 2220, 2340, 2405, 2834, 2886, 2943, 3270, 3330, 3510, 3924, 3996, 4033, 4251, 4329, 4810, 4905, 4995, 5668, 5772, 5886, 6540, 6660, 7020, 7085, 7215, 8066, 8502, 8658, 9620, 9810, 9990, 11772, 12099, 12753, 12987, 14170, 14430, 14715, 16132, 17004, 17316, 19620, 19980, 20165, 21255, 21645, 24198, 25506, 25974, 28340, 28860, 29430, 36297, 38259, 40330, 42510, 43290, 48396, 51012, 51948, 52429, 58860, 60495, 63765, 64935, 72594, 76518, 80660, 85020, 86580, 104858, 108891, 120990, 127530, 129870, 145188, 153036, 157287, 181485, 191295, 209716, 217782, 241980, 255060, 259740, 262145, 314574, 362970, 382590, 435564, 471861, 524290, 544455, 629148, 725940, 765180, 786435, 943722, 1048580, 1088910, 1415583, 1572870, 1887444, 2177820, 2359305, 2831166, 3145740, 4718610, 5662332, 7077915, 9437220, 14155830, 28311660]

約数ペア:

[(1, 28311660), (2, 14155830), (3, 9437220), (4, 7077915), (5, 5662332), (6, 4718610), (9, 3145740), (10, 2831166), (12, 2359305), (13, 2177820), (15, 1887444), (18, 1572870), (20, 1415583), (26, 1088910), (27, 1048580), (30, 943722), (36, 786435), (37, 765180), (39, 725940), (45, 629148), (52, 544455), (54, 524290), (60, 471861), (65, 435564), (74, 382590), (78, 362970), (90, 314574), (108, 262145), (109, 259740), (111, 255060), (117, 241980), (130, 217782), (135, 209716), (148, 191295), (156, 181485), (180, 157287), (185, 153036), (195, 145188), (218, 129870), (222, 127530), (234, 120990), (260, 108891), (270, 104858), (327, 86580), (333, 85020), (351, 80660), (370, 76518), (390, 72594), (436, 64935), (444, 63765), (468, 60495), (481, 58860), (540, 52429), (545, 51948), (555, 51012), (585, 48396), (654, 43290), (666, 42510), (702, 40330), (740, 38259), (780, 36297), (962, 29430), (981, 28860), (999, 28340), (1090, 25974), (1110, 25506), (1170, 24198), (1308, 21645), (1332, 21255), (1404, 20165), (1417, 19980), (1443, 19620), (1635, 17316), (1665, 17004), (1755, 16132), (1924, 14715), (1962, 14430), (1998, 14170), (2180, 12987), (2220, 12753), (2340, 12099), (2405, 11772), (2834, 9990), (2886, 9810), (2943, 9620), (3270, 8658), (3330, 8502), (3510, 8066), (3924, 7215), (3996, 7085), (4033, 7020), (4251, 6660), (4329, 6540), (4810, 5886), (4905, 5772), (4995, 5668)]