19907072

素因数分解:

$2^9\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:736

約数の個数: 40

約数和(自身を含む): 40510800

約数和(自身を除く): 20603728

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 118, 128, 236, 256, 472, 512, 659, 944, 1318, 1888, 2636, 3776, 5272, 7552, 10544, 15104, 21088, 30208, 38881, 42176, 77762, 84352, 155524, 168704, 311048, 337408, 622096, 1244192, 2488384, 4976768, 9953536, 19907072]

約数ペア:

[(1, 19907072), (2, 9953536), (4, 4976768), (8, 2488384), (16, 1244192), (32, 622096), (59, 337408), (64, 311048), (118, 168704), (128, 155524), (236, 84352), (256, 77762), (472, 42176), (512, 38881), (659, 30208), (944, 21088), (1318, 15104), (1888, 10544), (2636, 7552), (3776, 5272)]