988338620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{6967}}^1$

素因数の和:7190

約数の個数: 48

約数和(自身を含む): 2138730048

約数和(自身を除く): 1150391428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 173, 205, 346, 410, 692, 820, 865, 1730, 3460, 6967, 7093, 13934, 14186, 27868, 28372, 34835, 35465, 69670, 70930, 139340, 141860, 285647, 571294, 1142588, 1205291, 1428235, 2410582, 2856470, 4821164, 5712940, 6026455, 12052910, 24105820, 49416931, 98833862, 197667724, 247084655, 494169310, 988338620]

約数ペア:

[(1, 988338620), (2, 494169310), (4, 247084655), (5, 197667724), (10, 98833862), (20, 49416931), (41, 24105820), (82, 12052910), (164, 6026455), (173, 5712940), (205, 4821164), (346, 2856470), (410, 2410582), (692, 1428235), (820, 1205291), (865, 1142588), (1730, 571294), (3460, 285647), (6967, 141860), (7093, 139340), (13934, 70930), (14186, 69670), (27868, 35465), (28372, 34835)]