205599260

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 440082720

約数和(自身を除く): 234483460

約数列:

[1, 2, 4, 5, 10, 20, 97, 131, 194, 262, 388, 485, 524, 655, 809, 970, 1310, 1618, 1940, 2620, 3236, 4045, 8090, 12707, 16180, 25414, 50828, 63535, 78473, 105979, 127070, 156946, 211958, 254140, 313892, 392365, 423916, 529895, 784730, 1059790, 1569460, 2119580, 10279963, 20559926, 41119852, 51399815, 102799630, 205599260]

約数ペア:

[(1, 205599260), (2, 102799630), (4, 51399815), (5, 41119852), (10, 20559926), (20, 10279963), (97, 2119580), (131, 1569460), (194, 1059790), (262, 784730), (388, 529895), (485, 423916), (524, 392365), (655, 313892), (809, 254140), (970, 211958), (1310, 156946), (1618, 127070), (1940, 105979), (2620, 78473), (3236, 63535), (4045, 50828), (8090, 25414), (12707, 16180)]