4551980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 10053120

約数和(自身を除く): 5501140

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 79, 86, 134, 158, 172, 215, 268, 316, 335, 395, 430, 670, 790, 860, 1340, 1580, 2881, 3397, 5293, 5762, 6794, 10586, 11524, 13588, 14405, 16985, 21172, 26465, 28810, 33970, 52930, 57620, 67940, 105860, 227599, 455198, 910396, 1137995, 2275990, 4551980]

約数ペア:

[(1, 4551980), (2, 2275990), (4, 1137995), (5, 910396), (10, 455198), (20, 227599), (43, 105860), (67, 67940), (79, 57620), (86, 52930), (134, 33970), (158, 28810), (172, 26465), (215, 21172), (268, 16985), (316, 14405), (335, 13588), (395, 11524), (430, 10586), (670, 6794), (790, 5762), (860, 5293), (1340, 3397), (1580, 2881)]