31457560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1168

約数の個数: 64

約数和(自身を含む): 76308480

約数和(自身を除く): 44850920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 920, 1103, 1240, 1426, 2206, 2852, 3565, 4412, 5515, 5704, 7130, 8824, 11030, 14260, 22060, 25369, 28520, 34193, 44120, 50738, 68386, 101476, 126845, 136772, 170965, 202952, 253690, 273544, 341930, 507380, 683860, 786439, 1014760, 1367720, 1572878, 3145756, 3932195, 6291512, 7864390, 15728780, 31457560]

約数ペア:

[(1, 31457560), (2, 15728780), (4, 7864390), (5, 6291512), (8, 3932195), (10, 3145756), (20, 1572878), (23, 1367720), (31, 1014760), (40, 786439), (46, 683860), (62, 507380), (92, 341930), (115, 273544), (124, 253690), (155, 202952), (184, 170965), (230, 136772), (248, 126845), (310, 101476), (460, 68386), (620, 50738), (713, 44120), (920, 34193), (1103, 28520), (1240, 25369), (1426, 22060), (2206, 14260), (2852, 11030), (3565, 8824), (4412, 7130), (5515, 5704)]