1381217408

素因数分解:

$2^7\times {\mathrm{557}}^1\times {\mathrm{19373}}^1$

素因数の和:19944

約数の個数: 32

約数和(自身を含む): 2756726460

約数和(自身を除く): 1375509052

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 557, 1114, 2228, 4456, 8912, 17824, 19373, 35648, 38746, 71296, 77492, 154984, 309968, 619936, 1239872, 2479744, 10790761, 21581522, 43163044, 86326088, 172652176, 345304352, 690608704, 1381217408]

約数ペア:

[(1, 1381217408), (2, 690608704), (4, 345304352), (8, 172652176), (16, 86326088), (32, 43163044), (64, 21581522), (128, 10790761), (557, 2479744), (1114, 1239872), (2228, 619936), (4456, 309968), (8912, 154984), (17824, 77492), (19373, 71296), (35648, 38746)]