145777720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19489}}^1$

素因数の和:19528

約数の個数: 64

約数和(自身を含む): 378885600

約数和(自身を除く): 233107880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 19489, 38978, 77956, 97445, 155912, 194890, 214379, 331313, 389780, 428758, 662626, 779560, 857516, 1071895, 1325252, 1656565, 1715032, 2143790, 2650504, 3313130, 3644443, 4287580, 6626260, 7288886, 8575160, 13252520, 14577772, 18222215, 29155544, 36444430, 72888860, 145777720]

約数ペア:

[(1, 145777720), (2, 72888860), (4, 36444430), (5, 29155544), (8, 18222215), (10, 14577772), (11, 13252520), (17, 8575160), (20, 7288886), (22, 6626260), (34, 4287580), (40, 3644443), (44, 3313130), (55, 2650504), (68, 2143790), (85, 1715032), (88, 1656565), (110, 1325252), (136, 1071895), (170, 857516), (187, 779560), (220, 662626), (340, 428758), (374, 389780), (440, 331313), (680, 214379), (748, 194890), (935, 155912), (1496, 97445), (1870, 77956), (3740, 38978), (7480, 19489)]