404505280

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16001}}^1$

素因数の和:16097

約数の個数: 56

約数和(自身を含む): 975481920

約数和(自身を除く): 570976640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 12640, 16001, 25280, 32002, 64004, 80005, 128008, 160010, 256016, 320020, 512032, 640040, 1024064, 1264079, 1280080, 2528158, 2560160, 5056316, 5120320, 6320395, 10112632, 12640790, 20225264, 25281580, 40450528, 50563160, 80901056, 101126320, 202252640, 404505280]

約数ペア:

[(1, 404505280), (2, 202252640), (4, 101126320), (5, 80901056), (8, 50563160), (10, 40450528), (16, 25281580), (20, 20225264), (32, 12640790), (40, 10112632), (64, 6320395), (79, 5120320), (80, 5056316), (158, 2560160), (160, 2528158), (316, 1280080), (320, 1264079), (395, 1024064), (632, 640040), (790, 512032), (1264, 320020), (1580, 256016), (2528, 160010), (3160, 128008), (5056, 80005), (6320, 64004), (12640, 32002), (16001, 25280)]