1286454940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{56473}}^1$

素因数の和:56566

約数の個数: 48

約数和(自身を含む): 2903215392

約数和(自身を除く): 1616760452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 22780, 56473, 112946, 225892, 282365, 564730, 960041, 1129460, 1920082, 3783691, 3840164, 4800205, 7567382, 9600410, 15134764, 18918455, 19200820, 37836910, 64322747, 75673820, 128645494, 257290988, 321613735, 643227470, 1286454940]

約数ペア:

[(1, 1286454940), (2, 643227470), (4, 321613735), (5, 257290988), (10, 128645494), (17, 75673820), (20, 64322747), (34, 37836910), (67, 19200820), (68, 18918455), (85, 15134764), (134, 9600410), (170, 7567382), (268, 4800205), (335, 3840164), (340, 3783691), (670, 1920082), (1139, 1129460), (1340, 960041), (2278, 564730), (4556, 282365), (5695, 225892), (11390, 112946), (22780, 56473)]