1149440

素因数分解:

$2^9\times 5^1\times {\mathrm{449}}^1$

素因数の和:472

約数の個数: 40

約数和(自身を含む): 2762100

約数和(自身を除く): 1612660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 449, 512, 640, 898, 1280, 1796, 2245, 2560, 3592, 4490, 7184, 8980, 14368, 17960, 28736, 35920, 57472, 71840, 114944, 143680, 229888, 287360, 574720, 1149440]

約数ペア:

[(1, 1149440), (2, 574720), (4, 287360), (5, 229888), (8, 143680), (10, 114944), (16, 71840), (20, 57472), (32, 35920), (40, 28736), (64, 17960), (80, 14368), (128, 8980), (160, 7184), (256, 4490), (320, 3592), (449, 2560), (512, 2245), (640, 1796), (898, 1280)]