400228160

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{65827}}^1$

素因数の和:65863

約数の個数: 56

約数和(自身を含む): 1003218720

約数和(自身を除く): 602990560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 65827, 131654, 263308, 329135, 526616, 658270, 1053232, 1250713, 1316540, 2106464, 2501426, 2633080, 4212928, 5002852, 5266160, 6253565, 10005704, 10532320, 12507130, 20011408, 21064640, 25014260, 40022816, 50028520, 80045632, 100057040, 200114080, 400228160]

約数ペア:

[(1, 400228160), (2, 200114080), (4, 100057040), (5, 80045632), (8, 50028520), (10, 40022816), (16, 25014260), (19, 21064640), (20, 20011408), (32, 12507130), (38, 10532320), (40, 10005704), (64, 6253565), (76, 5266160), (80, 5002852), (95, 4212928), (152, 2633080), (160, 2501426), (190, 2106464), (304, 1316540), (320, 1250713), (380, 1053232), (608, 658270), (760, 526616), (1216, 329135), (1520, 263308), (3040, 131654), (6080, 65827)]