20845408

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 42653520

約数和(自身を除く): 21808112

約数列:

[1, 2, 4, 8, 16, 32, 59, 61, 118, 122, 181, 236, 244, 362, 472, 488, 724, 944, 976, 1448, 1888, 1952, 2896, 3599, 5792, 7198, 10679, 11041, 14396, 21358, 22082, 28792, 42716, 44164, 57584, 85432, 88328, 115168, 170864, 176656, 341728, 353312, 651419, 1302838, 2605676, 5211352, 10422704, 20845408]

約数ペア:

[(1, 20845408), (2, 10422704), (4, 5211352), (8, 2605676), (16, 1302838), (32, 651419), (59, 353312), (61, 341728), (118, 176656), (122, 170864), (181, 115168), (236, 88328), (244, 85432), (362, 57584), (472, 44164), (488, 42716), (724, 28792), (944, 22082), (976, 21358), (1448, 14396), (1888, 11041), (1952, 10679), (2896, 7198), (3599, 5792)]