40017920

素因数分解:

$2^{13}\times 5^1\times {\mathrm{977}}^1$

素因数の和:1008

約数の個数: 56

約数和(自身を含む): 96135444

約数和(自身を除く): 56117524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 977, 1024, 1280, 1954, 2048, 2560, 3908, 4096, 4885, 5120, 7816, 8192, 9770, 10240, 15632, 19540, 20480, 31264, 39080, 40960, 62528, 78160, 125056, 156320, 250112, 312640, 500224, 625280, 1000448, 1250560, 2000896, 2501120, 4001792, 5002240, 8003584, 10004480, 20008960, 40017920]

約数ペア:

[(1, 40017920), (2, 20008960), (4, 10004480), (5, 8003584), (8, 5002240), (10, 4001792), (16, 2501120), (20, 2000896), (32, 1250560), (40, 1000448), (64, 625280), (80, 500224), (128, 312640), (160, 250112), (256, 156320), (320, 125056), (512, 78160), (640, 62528), (977, 40960), (1024, 39080), (1280, 31264), (1954, 20480), (2048, 19540), (2560, 15632), (3908, 10240), (4096, 9770), (4885, 8192), (5120, 7816)]