211528960

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9721}}^1$

素因数の和:9759

約数の個数: 72

約数和(自身を含む): 536537736

約数和(自身を除く): 325008776

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, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 4352, 5440, 9721, 10880, 19442, 21760, 38884, 48605, 77768, 97210, 155536, 165257, 194420, 311072, 330514, 388840, 622144, 661028, 777680, 826285, 1244288, 1322056, 1555360, 1652570, 2488576, 2644112, 3110720, 3305140, 5288224, 6221440, 6610280, 10576448, 12442880, 13220560, 21152896, 26441120, 42305792, 52882240, 105764480, 211528960]

約数ペア:

[(1, 211528960), (2, 105764480), (4, 52882240), (5, 42305792), (8, 26441120), (10, 21152896), (16, 13220560), (17, 12442880), (20, 10576448), (32, 6610280), (34, 6221440), (40, 5288224), (64, 3305140), (68, 3110720), (80, 2644112), (85, 2488576), (128, 1652570), (136, 1555360), (160, 1322056), (170, 1244288), (256, 826285), (272, 777680), (320, 661028), (340, 622144), (544, 388840), (640, 330514), (680, 311072), (1088, 194420), (1280, 165257), (1360, 155536), (2176, 97210), (2720, 77768), (4352, 48605), (5440, 38884), (9721, 21760), (10880, 19442)]