74897920

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1761

約数の個数: 80

約数和(自身を含む): 190253448

約数和(自身を除く): 115355528

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, 1721, 2176, 2560, 2720, 3442, 4352, 5440, 6884, 8605, 8704, 10880, 13768, 17210, 21760, 27536, 29257, 34420, 43520, 55072, 58514, 68840, 110144, 117028, 137680, 146285, 220288, 234056, 275360, 292570, 440576, 468112, 550720, 585140, 881152, 936224, 1101440, 1170280, 1872448, 2202880, 2340560, 3744896, 4405760, 4681120, 7489792, 9362240, 14979584, 18724480, 37448960, 74897920]

約数ペア:

[(1, 74897920), (2, 37448960), (4, 18724480), (5, 14979584), (8, 9362240), (10, 7489792), (16, 4681120), (17, 4405760), (20, 3744896), (32, 2340560), (34, 2202880), (40, 1872448), (64, 1170280), (68, 1101440), (80, 936224), (85, 881152), (128, 585140), (136, 550720), (160, 468112), (170, 440576), (256, 292570), (272, 275360), (320, 234056), (340, 220288), (512, 146285), (544, 137680), (640, 117028), (680, 110144), (1088, 68840), (1280, 58514), (1360, 55072), (1721, 43520), (2176, 34420), (2560, 29257), (2720, 27536), (3442, 21760), (4352, 17210), (5440, 13768), (6884, 10880), (8605, 8704)]