81464760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{103}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 289598400

約数和(自身を除く): 208133640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 103, 104, 117, 120, 130, 156, 169, 180, 195, 206, 234, 260, 309, 312, 338, 360, 390, 412, 468, 507, 515, 520, 585, 618, 676, 780, 824, 845, 927, 936, 1014, 1030, 1170, 1236, 1339, 1352, 1521, 1545, 1560, 1690, 1854, 2028, 2060, 2197, 2340, 2472, 2535, 2678, 3042, 3090, 3380, 3708, 4017, 4056, 4120, 4394, 4635, 4680, 5070, 5356, 6084, 6180, 6591, 6695, 6760, 7416, 7605, 8034, 8788, 9270, 10140, 10712, 10985, 12051, 12168, 12360, 13182, 13390, 15210, 16068, 17407, 17576, 18540, 19773, 20085, 20280, 21970, 24102, 26364, 26780, 30420, 32136, 32955, 34814, 37080, 39546, 40170, 43940, 48204, 52221, 52728, 53560, 60255, 60840, 65910, 69628, 79092, 80340, 87035, 87880, 96408, 98865, 104442, 120510, 131820, 139256, 156663, 158184, 160680, 174070, 197730, 208884, 226291, 241020, 261105, 263640, 313326, 348140, 395460, 417768, 452582, 482040, 522210, 626652, 678873, 696280, 783315, 790920, 905164, 1044420, 1131455, 1253304, 1357746, 1566630, 1810328, 2036619, 2088840, 2262910, 2715492, 3133260, 3394365, 4073238, 4525820, 5430984, 6266520, 6788730, 8146476, 9051640, 10183095, 13577460, 16292952, 20366190, 27154920, 40732380, 81464760]

約数ペア:

[(1, 81464760), (2, 40732380), (3, 27154920), (4, 20366190), (5, 16292952), (6, 13577460), (8, 10183095), (9, 9051640), (10, 8146476), (12, 6788730), (13, 6266520), (15, 5430984), (18, 4525820), (20, 4073238), (24, 3394365), (26, 3133260), (30, 2715492), (36, 2262910), (39, 2088840), (40, 2036619), (45, 1810328), (52, 1566630), (60, 1357746), (65, 1253304), (72, 1131455), (78, 1044420), (90, 905164), (103, 790920), (104, 783315), (117, 696280), (120, 678873), (130, 626652), (156, 522210), (169, 482040), (180, 452582), (195, 417768), (206, 395460), (234, 348140), (260, 313326), (309, 263640), (312, 261105), (338, 241020), (360, 226291), (390, 208884), (412, 197730), (468, 174070), (507, 160680), (515, 158184), (520, 156663), (585, 139256), (618, 131820), (676, 120510), (780, 104442), (824, 98865), (845, 96408), (927, 87880), (936, 87035), (1014, 80340), (1030, 79092), (1170, 69628), (1236, 65910), (1339, 60840), (1352, 60255), (1521, 53560), (1545, 52728), (1560, 52221), (1690, 48204), (1854, 43940), (2028, 40170), (2060, 39546), (2197, 37080), (2340, 34814), (2472, 32955), (2535, 32136), (2678, 30420), (3042, 26780), (3090, 26364), (3380, 24102), (3708, 21970), (4017, 20280), (4056, 20085), (4120, 19773), (4394, 18540), (4635, 17576), (4680, 17407), (5070, 16068), (5356, 15210), (6084, 13390), (6180, 13182), (6591, 12360), (6695, 12168), (6760, 12051), (7416, 10985), (7605, 10712), (8034, 10140), (8788, 9270)]