81204760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3187}}^1$

素因数の和:3225

約数の個数: 96

約数和(自身を含む): 228962160

約数和(自身を除く): 147757400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3187, 3640, 5096, 6370, 6374, 12740, 12748, 15935, 22309, 25480, 25496, 31870, 41431, 44618, 63740, 82862, 89236, 111545, 127480, 156163, 165724, 178472, 207155, 223090, 290017, 312326, 331448, 414310, 446180, 580034, 624652, 780815, 828620, 892360, 1160068, 1249304, 1450085, 1561630, 1657240, 2030119, 2320136, 2900170, 3123260, 4060238, 5800340, 6246520, 8120476, 10150595, 11600680, 16240952, 20301190, 40602380, 81204760]

約数ペア:

[(1, 81204760), (2, 40602380), (4, 20301190), (5, 16240952), (7, 11600680), (8, 10150595), (10, 8120476), (13, 6246520), (14, 5800340), (20, 4060238), (26, 3123260), (28, 2900170), (35, 2320136), (40, 2030119), (49, 1657240), (52, 1561630), (56, 1450085), (65, 1249304), (70, 1160068), (91, 892360), (98, 828620), (104, 780815), (130, 624652), (140, 580034), (182, 446180), (196, 414310), (245, 331448), (260, 312326), (280, 290017), (364, 223090), (392, 207155), (455, 178472), (490, 165724), (520, 156163), (637, 127480), (728, 111545), (910, 89236), (980, 82862), (1274, 63740), (1820, 44618), (1960, 41431), (2548, 31870), (3185, 25496), (3187, 25480), (3640, 22309), (5096, 15935), (6370, 12748), (6374, 12740)]