164037680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23039}}^1$

素因数の和:23141

約数の個数: 40

約数和(自身を含む): 385689600

約数和(自身を除く): 221651920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 23039, 46078, 92156, 115195, 184312, 230390, 368624, 460780, 921560, 1843120, 2050471, 4100942, 8201884, 10252355, 16403768, 20504710, 32807536, 41009420, 82018840, 164037680]

約数ペア:

[(1, 164037680), (2, 82018840), (4, 41009420), (5, 32807536), (8, 20504710), (10, 16403768), (16, 10252355), (20, 8201884), (40, 4100942), (80, 2050471), (89, 1843120), (178, 921560), (356, 460780), (445, 368624), (712, 230390), (890, 184312), (1424, 115195), (1780, 92156), (3560, 46078), (7120, 23039)]