251146364

素因数分解:

$2^2\times 7^2\times {\mathrm{641}}^1\times {\mathrm{1999}}^1$

素因数の和:2658

約数の個数: 36

約数和(自身を含む): 512316000

約数和(自身を除く): 261169636

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 641, 1282, 1999, 2564, 3998, 4487, 7996, 8974, 13993, 17948, 27986, 31409, 55972, 62818, 97951, 125636, 195902, 391804, 1281359, 2562718, 5125436, 8969513, 17939026, 35878052, 62786591, 125573182, 251146364]

約数ペア:

[(1, 251146364), (2, 125573182), (4, 62786591), (7, 35878052), (14, 17939026), (28, 8969513), (49, 5125436), (98, 2562718), (196, 1281359), (641, 391804), (1282, 195902), (1999, 125636), (2564, 97951), (3998, 62818), (4487, 55972), (7996, 31409), (8974, 27986), (13993, 17948)]