64656480

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{2749}}^1$

素因数の和:2781

約数の個数: 144

約数和(自身を含む): 237006000

約数和(自身を除く): 172349520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2749, 2940, 3360, 3920, 4704, 5498, 5880, 7840, 8247, 10996, 11760, 13745, 16494, 19243, 21992, 23520, 27490, 32988, 38486, 41235, 43984, 54980, 57729, 65976, 76972, 82470, 87968, 96215, 109960, 115458, 131952, 134701, 153944, 164940, 192430, 219920, 230916, 263904, 269402, 288645, 307888, 329880, 384860, 404103, 439840, 461832, 538804, 577290, 615776, 659760, 673505, 769720, 808206, 923664, 1077608, 1154580, 1319520, 1347010, 1539440, 1616412, 1847328, 2020515, 2155216, 2309160, 2694020, 3078880, 3232824, 4041030, 4310432, 4618320, 5388040, 6465648, 8082060, 9236640, 10776080, 12931296, 16164120, 21552160, 32328240, 64656480]

約数ペア:

[(1, 64656480), (2, 32328240), (3, 21552160), (4, 16164120), (5, 12931296), (6, 10776080), (7, 9236640), (8, 8082060), (10, 6465648), (12, 5388040), (14, 4618320), (15, 4310432), (16, 4041030), (20, 3232824), (21, 3078880), (24, 2694020), (28, 2309160), (30, 2155216), (32, 2020515), (35, 1847328), (40, 1616412), (42, 1539440), (48, 1347010), (49, 1319520), (56, 1154580), (60, 1077608), (70, 923664), (80, 808206), (84, 769720), (96, 673505), (98, 659760), (105, 615776), (112, 577290), (120, 538804), (140, 461832), (147, 439840), (160, 404103), (168, 384860), (196, 329880), (210, 307888), (224, 288645), (240, 269402), (245, 263904), (280, 230916), (294, 219920), (336, 192430), (392, 164940), (420, 153944), (480, 134701), (490, 131952), (560, 115458), (588, 109960), (672, 96215), (735, 87968), (784, 82470), (840, 76972), (980, 65976), (1120, 57729), (1176, 54980), (1470, 43984), (1568, 41235), (1680, 38486), (1960, 32988), (2352, 27490), (2749, 23520), (2940, 21992), (3360, 19243), (3920, 16494), (4704, 13745), (5498, 11760), (5880, 10996), (7840, 8247)]