21188650880

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{894791}}^1$

素因数の和:894847

約数の個数: 64

約数和(自身を含む): 52023206880

約数和(自身を除く): 30834556000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 1184, 1480, 2368, 2960, 4736, 5920, 11840, 23680, 894791, 1789582, 3579164, 4473955, 7158328, 8947910, 14316656, 17895820, 28633312, 33107267, 35791640, 57266624, 66214534, 71583280, 114533248, 132429068, 143166560, 165536335, 264858136, 286333120, 331072670, 529716272, 572666240, 662145340, 1059432544, 1324290680, 2118865088, 2648581360, 4237730176, 5297162720, 10594325440, 21188650880]

約数ペア:

[(1, 21188650880), (2, 10594325440), (4, 5297162720), (5, 4237730176), (8, 2648581360), (10, 2118865088), (16, 1324290680), (20, 1059432544), (32, 662145340), (37, 572666240), (40, 529716272), (64, 331072670), (74, 286333120), (80, 264858136), (128, 165536335), (148, 143166560), (160, 132429068), (185, 114533248), (296, 71583280), (320, 66214534), (370, 57266624), (592, 35791640), (640, 33107267), (740, 28633312), (1184, 17895820), (1480, 14316656), (2368, 8947910), (2960, 7158328), (4736, 4473955), (5920, 3579164), (11840, 1789582), (23680, 894791)]