64017920

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1471}}^1$

素因数の和:1511

約数の個数: 80

約数和(自身を含む): 162632448

約数和(自身を除く): 98614528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1088, 1280, 1360, 1471, 2176, 2560, 2720, 2942, 4352, 5440, 5884, 7355, 8704, 10880, 11768, 14710, 21760, 23536, 25007, 29420, 43520, 47072, 50014, 58840, 94144, 100028, 117680, 125035, 188288, 200056, 235360, 250070, 376576, 400112, 470720, 500140, 753152, 800224, 941440, 1000280, 1600448, 1882880, 2000560, 3200896, 3765760, 4001120, 6401792, 8002240, 12803584, 16004480, 32008960, 64017920]

約数ペア:

[(1, 64017920), (2, 32008960), (4, 16004480), (5, 12803584), (8, 8002240), (10, 6401792), (16, 4001120), (17, 3765760), (20, 3200896), (32, 2000560), (34, 1882880), (40, 1600448), (64, 1000280), (68, 941440), (80, 800224), (85, 753152), (128, 500140), (136, 470720), (160, 400112), (170, 376576), (256, 250070), (272, 235360), (320, 200056), (340, 188288), (512, 125035), (544, 117680), (640, 100028), (680, 94144), (1088, 58840), (1280, 50014), (1360, 47072), (1471, 43520), (2176, 29420), (2560, 25007), (2720, 23536), (2942, 21760), (4352, 14710), (5440, 11768), (5884, 10880), (7355, 8704)]