64499680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:481

約数の個数: 144

約数和(自身を含む): 187019280

約数和(自身を除く): 122519600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 160, 190, 196, 224, 245, 266, 280, 304, 380, 392, 433, 490, 532, 560, 608, 665, 760, 784, 866, 931, 980, 1064, 1120, 1330, 1520, 1568, 1732, 1862, 1960, 2128, 2165, 2660, 3031, 3040, 3464, 3724, 3920, 4256, 4330, 4655, 5320, 6062, 6928, 7448, 7840, 8227, 8660, 9310, 10640, 12124, 13856, 14896, 15155, 16454, 17320, 18620, 21217, 21280, 24248, 29792, 30310, 32908, 34640, 37240, 41135, 42434, 48496, 57589, 60620, 65816, 69280, 74480, 82270, 84868, 96992, 106085, 115178, 121240, 131632, 148960, 164540, 169736, 212170, 230356, 242480, 263264, 287945, 329080, 339472, 403123, 424340, 460712, 484960, 575890, 658160, 678944, 806246, 848680, 921424, 1151780, 1316320, 1612492, 1697360, 1842848, 2015615, 2303560, 3224984, 3394720, 4031230, 4607120, 6449968, 8062460, 9214240, 12899936, 16124920, 32249840, 64499680]

約数ペア:

[(1, 64499680), (2, 32249840), (4, 16124920), (5, 12899936), (7, 9214240), (8, 8062460), (10, 6449968), (14, 4607120), (16, 4031230), (19, 3394720), (20, 3224984), (28, 2303560), (32, 2015615), (35, 1842848), (38, 1697360), (40, 1612492), (49, 1316320), (56, 1151780), (70, 921424), (76, 848680), (80, 806246), (95, 678944), (98, 658160), (112, 575890), (133, 484960), (140, 460712), (152, 424340), (160, 403123), (190, 339472), (196, 329080), (224, 287945), (245, 263264), (266, 242480), (280, 230356), (304, 212170), (380, 169736), (392, 164540), (433, 148960), (490, 131632), (532, 121240), (560, 115178), (608, 106085), (665, 96992), (760, 84868), (784, 82270), (866, 74480), (931, 69280), (980, 65816), (1064, 60620), (1120, 57589), (1330, 48496), (1520, 42434), (1568, 41135), (1732, 37240), (1862, 34640), (1960, 32908), (2128, 30310), (2165, 29792), (2660, 24248), (3031, 21280), (3040, 21217), (3464, 18620), (3724, 17320), (3920, 16454), (4256, 15155), (4330, 14896), (4655, 13856), (5320, 12124), (6062, 10640), (6928, 9310), (7448, 8660), (7840, 8227)]