19904960

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3659}}^1$

素因数の和:3693

約数の個数: 56

約数和(自身を含む): 50200560

約数和(自身を除く): 30295600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3659, 5440, 7318, 14636, 18295, 29272, 36590, 58544, 62203, 73180, 117088, 124406, 146360, 234176, 248812, 292720, 311015, 497624, 585440, 622030, 995248, 1170880, 1244060, 1990496, 2488120, 3980992, 4976240, 9952480, 19904960]

約数ペア:

[(1, 19904960), (2, 9952480), (4, 4976240), (5, 3980992), (8, 2488120), (10, 1990496), (16, 1244060), (17, 1170880), (20, 995248), (32, 622030), (34, 585440), (40, 497624), (64, 311015), (68, 292720), (80, 248812), (85, 234176), (136, 146360), (160, 124406), (170, 117088), (272, 73180), (320, 62203), (340, 58544), (544, 36590), (680, 29272), (1088, 18295), (1360, 14636), (2720, 7318), (3659, 5440)]